La syntaxe FreeMarker n'est pas valide.

Java method "com.sun.proxy.$Proxy810.getArticleByUrlTitle(long, String)" threw an exception when invoked on com.sun.proxy.$Proxy810 object "com.liferay.journal.service.impl.JournalArticleLocalServiceImpl@18eed7b6"; see cause exception in the Java stack trace.

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FTL stack trace ("~" means nesting-related):
- Failed at: #assign webContent = JournalArticleLo... [in template "template_id" at line 16, column 7]
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