Failed to execute the [html] macro. Cause: [INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified. ]. Click on this message for details.

After update to 10.7 the our news page (based on blog) is showing the following error message

Failed to execute the [html] macro. Cause: [INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified. ]. Click on this message for details.

{{org.w3c.dom.DOMException: INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified. }}
{{ at org.apache.xerces.dom.CoreDocumentImpl.createAttribute(Unknown Source)}}
{{ at org.apache.xerces.dom.ElementImpl.setAttribute(Unknown Source)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createSubnodes(XWikiDOMSerializer.java:295)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createSubnodes(XWikiDOMSerializer.java:299)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createSubnodes(XWikiDOMSerializer.java:299)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createSubnodes(XWikiDOMSerializer.java:299)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createSubnodes(XWikiDOMSerializer.java:299)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createSubnodes(XWikiDOMSerializer.java:299)}}
{{ at org.htmlcleaner.XWikiDOMSerializer.createDOM(XWikiDOMSerializer.java:163)}}
{{ at org.xwiki.xml.internal.html.DefaultHTMLCleaner.clean(DefaultHTMLCleaner.java:158)}}
{{ at org.xwiki.rendering.internal.macro.html.HTMLMacro.cleanHTML(HTMLMacro.java:189)}}
{{ at org.xwiki.rendering.internal.macro.html.HTMLMacro.execute(HTMLMacro.java:159)}}
{{ at org.xwiki.rendering.internal.macro.html.HTMLMacro.execute(HTMLMacro.java:73)}}
{{ at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:297)}}
{{ at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183)}}
{{ at org.xwiki.rendering.internal.macro.html.HTMLMacro.renderWikiSyntax(HTMLMacro.java:274)}}
{{ at org.xwiki.rendering.internal.macro.html.HTMLMacro.execute(HTMLMacro.java:154)}}
{{ at org.xwiki.rendering.internal.macro.html.HTMLMacro.execute(HTMLMacro.java:73)}}
{{ at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:297)}}
{{ at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183)}}
{{ at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:101)}}
{{ at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:263)}}
{{ at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:133)}}
{{ at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:58)}}
{{ at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96)}}
{{ at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39)}}
{{ at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:239)}}
{{ at org.xwiki.sheet.internal.SheetDocumentDisplayer.applySheet(SheetDocumentDisplayer.java:219)}}
{{ at org.xwiki.sheet.internal.SheetDocumentDisplayer.maybeDisplayWithSheet(SheetDocumentDisplayer.java:174)}}
{{ at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:111)}}
{{ at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:52)}}
{{ at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68)}}
{{ at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42)}}
{{ at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1179)}}
{{ at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1220)}}
{{ at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1197)}}
{{ at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1228)}}
{{ at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:730)}}
{{ at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)}}
{{ at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)}}
{{ at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)}}
{{ at java.lang.reflect.Method.invoke(Method.java:498)}}
{{ at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)}}
{{ at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)}}
{{ at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)}}
{{ at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)}}
{{ at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)}}
{{ at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)}}
{{ at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)}}
{{ at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)}}
{{ at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)}}
{{ at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)}}
{{ at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)}}
{{ at org.xwiki.velocity.introspection.TryCatchDirective.render(TryCatchDirective.java:87)}}
{{ at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)}}
{{ at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)}}
{{ at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)}}
{{ at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)}}
{{ at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:357)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:825)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:701)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:676)}}
{{ at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:675)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:654)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:640)}}
{{ at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)}}
{{ at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2269)}}
{{ at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2247)}}
{{ at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:992)}}
{{ at sun.reflect.GeneratedMethodAccessor293.invoke(Unknown Source)}}
{{ at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)}}
{{ at java.lang.reflect.Method.invoke(Method.java:498)}}
{{ at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)}}
{{ at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)}}
{{ at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)}}
{{ at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)}}
{{ at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)}}
{{ at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)}}
{{ at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)}}
{{ at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)}}
{{ at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)}}
{{ at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)}}
{{ at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)}}
{{ at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)}}
{{ at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)}}
{{ at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:357)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:825)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:701)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:676)}}
{{ at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:675)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:654)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:640)}}
{{ at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)}}
{{ at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2269)}}
{{ at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2247)}}
{{ at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:992)}}
{{ at sun.reflect.GeneratedMethodAccessor293.invoke(Unknown Source)}}
{{ at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)}}
{{ at java.lang.reflect.Method.invoke(Method.java:498)}}
{{ at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)}}
{{ at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)}}
{{ at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)}}
{{ at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)}}
{{ at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)}}
{{ at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)}}
{{ at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)}}
{{ at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)}}
{{ at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)}}
{{ at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)}}
{{ at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)}}
{{ at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)}}
{{ at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)}}
{{ at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)}}
{{ at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)}}
{{ at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)}}
{{ at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)}}
{{ at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)}}
{{ at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:357)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:825)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:701)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:676)}}
{{ at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:675)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:654)}}
{{ at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:640)}}
{{ at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)}}
{{ at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2269)}}
{{ at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:180)}}
{{ at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:475)}}
{{ at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)}}
{{ at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)}}
{{ at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)}}
{{ at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)}}
{{ at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)}}
{{ at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)}}
{{ at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)}}
{{ at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)}}
{{ at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)}}
{{ at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)}}
{{ at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)}}
{{ at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)}}
{{ at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)}}
{{ at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)}}
{{ at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)}}
{{ at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)}}
{{ at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)}}
{{ at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)}}
{{ at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)}}
{{ at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)}}
{{ at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)}}
{{ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)}}
{{ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)}}
{{ at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)}}
{{ at java.lang.Thread.run(Thread.java:748)}}

There are no "Older Posts" oder "Newer Posts" buttons displayed anymore.

Also to note that when the application is downgraded to 9.7 it works.