2018-12-13 17:06:58,063 [XWiki Solr index thread] ERROR .DocumentSolrMetadataExtractor - Failed to retrieve the content of attachment [Attachment xwiki:Foo.WebHome@Capture d’écran_2018-12-11_09-46-08.png] 
com.xpn.xwiki.XWikiException: Error number 3231 in 3: Exception while loading attachment Attachment xwiki:Foo.WebHome@Capture d’écran_2018-12-11_09-46-08.png
	at com.xpn.xwiki.store.XWikiHibernateAttachmentStore.loadAttachmentContent(XWikiHibernateAttachmentStore.java:260)
	at com.xpn.xwiki.doc.XWikiAttachment.loadAttachmentContent(XWikiAttachment.java:1070)
	at com.xpn.xwiki.doc.XWikiAttachment.reloadAttachmentContent(XWikiAttachment.java:890)
	at com.xpn.xwiki.doc.XWikiAttachment.getContentInputStream(XWikiAttachment.java:868)
	at org.xwiki.search.solr.internal.metadata.AbstractSolrMetadataExtractor.getContentAsText(AbstractSolrMetadataExtractor.java:506)
	at org.xwiki.search.solr.internal.metadata.DocumentSolrMetadataExtractor.setAttachment(DocumentSolrMetadataExtractor.java:281)
	at org.xwiki.search.solr.internal.metadata.DocumentSolrMetadataExtractor.setAttachments(DocumentSolrMetadataExtractor.java:261)
	at org.xwiki.search.solr.internal.metadata.DocumentSolrMetadataExtractor.setExtras(DocumentSolrMetadataExtractor.java:187)
	at org.xwiki.search.solr.internal.metadata.DocumentSolrMetadataExtractor.setFieldsInternal(DocumentSolrMetadataExtractor.java:135)
	at org.xwiki.search.solr.internal.metadata.AbstractSolrMetadataExtractor.getSolrDocument(AbstractSolrMetadataExtractor.java:133)
	at org.xwiki.search.solr.internal.DefaultSolrIndexer.getSolrDocument(DefaultSolrIndexer.java:504)
	at org.xwiki.search.solr.internal.DefaultSolrIndexer.processBatch(DefaultSolrIndexer.java:411)
	at org.xwiki.search.solr.internal.DefaultSolrIndexer.run(DefaultSolrIndexer.java:377)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.xpn.xwiki.doc.XWikiAttachmentContent#1851804408]
	at org.hibernate.impl.SessionFactoryImpl$2.handleEntityNotFound(SessionFactoryImpl.java:435)
	at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:233)
	at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285)
	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
	at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090)
	at org.hibernate.impl.SessionImpl.load(SessionImpl.java:974)
	at com.xpn.xwiki.store.XWikiHibernateAttachmentStore.loadAttachmentContent(XWikiHibernateAttachmentStore.java:247)
	... 13 common frames omitted