Sporadic error from the IRC Bot when starting XWiki

xwikibot [~PircBotX@ip] entered the room.

19:25
xwikibot
xwikibot: An error occurred while executing Wiki IRC Bot Listener [dev:IRC.LoggingBotListener]. Check your server logs.

{noformat2016-02-01 19:24:59,129 [XWiki Solr index job thread] INFO  o.x.s.s.i.j.IndexerJob         - 1 documents added, 0 deleted and 0 updated during the synchronization of the Solr index. 
2016-02-01 19:24:59,130 [XWiki Solr index job thread] INFO  o.x.s.s.i.j.IndexerJob         - Finished job of type [solr.indexer] with identifier [[solr, indexer]] 
2016-02-01 19:25:21,434 [Thread-20] WARN  o.x.i.i.w.WikiIRCBotListener   - Failed to execute IRC Bot Listener script [onJoin] 
org.xwiki.ircbot.IRCBotException: Macro error when rendering Wiki Bot Listener content [Unknown macro: irclog.The "irclog" macro is not in the list of registered macros. Verify the spelling or contact your administrator.
      ]
	at org.xwiki.ircbot.internal.wiki.DefaultExecutor.renderContent(DefaultExecutor.java:135) ~[org%252Exwiki%252Eplatform%253Axwiki-platform-ircbot-api-7%252E1%252E1.jar:na]
	at org.xwiki.ircbot.internal.wiki.DefaultExecutor.execute(DefaultExecutor.java:104) ~[org%252Exwiki%252Eplatform%253Axwiki-platform-ircbot-api-7%252E1%252E1.jar:na]
	at org.xwiki.ircbot.internal.wiki.DefaultWikiIRCModel.executeAsUser(DefaultWikiIRCModel.java:197) ~[org%252Exwiki%252Eplatform%253Axwiki-platform-ircbot-api-7%252E1%252E1.jar:na]
	at org.xwiki.ircbot.internal.wiki.WikiIRCBotListener.executeAsUser(WikiIRCBotListener.java:239) ~[org%252Exwiki%252Eplatform%253Axwiki-platform-ircbot-api-7%252E1%252E1.jar:na]
	at org.xwiki.ircbot.internal.wiki.WikiIRCBotListener.onEvent(WikiIRCBotListener.java:208) ~[org%252Exwiki%252Eplatform%253Axwiki-platform-ircbot-api-7%252E1%252E1.jar:na]
	at org.pircbotx.hooks.managers.ThreadedListenerManager$1.run(ThreadedListenerManager.java:91) [org.pircbotx%253Apircbotx-1.6.jar:na]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [na:1.7.0_51]
	at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_51]
	at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
	at org.xwiki.ircbot.internal.XWikiContextualizedThreadFactory$XWikiContextualizedThread.run(XWikiContextualizedThreadFactory.java:121) [org%252Exwiki%252Eplatform%253Axwiki-platform-ircbot-api-7%252E1%252E1.jar:na]
null [1:23] Error in expression. (Invalid token "<EOF>". Was expecting one of: <S>, <NUMBER>, "inherit", <IDENT>, <STRING>, ";", "/", "-", <PLUS>, <COMMA>, <HASH>, <IMPORTANT_SYM>, <EMS>, <EXS>, <LENGTH_PX>, <LENGTH_CM>, <LENGTH_MM>, <LENGTH_IN>, <LENGTH_PT>, <LENGTH_PC>, <ANGLE_DEG>, <ANGLE_RAD>, <ANGLE_GRAD>, <TIME_MS>, <TIME_S>, <FREQ_HZ>, <FREQ_KHZ>, <PERCENTAGE>, <DIMENSION>, <URI>, <FUNCTION>.)