I am restoring xwiki on a test instance, from 8.2.1 (old instance backup, Ubuntu 14.04) to 11.9 (Ubuntu 18.04)
I managed to get the wiki up with backup restore.
The thing is now I see all the pages in xwiki but no content. When access a page, I get -
$renderedContent
But when I try to edit the page, I can see the content.
And in the logs I see -
ERROR c.x.x.d.XWikiDocument - Failed to get the default edit mode for [lcsbbiocore:lcsb-sysadmins.Predict-protein]
java.lang.RuntimeException: Error creating extended parser class: null
Any idea on how to solve this?
Best Regards