Error on talk pages
From semantic-mediawiki.org
Fragment of a discussion from Semantic MediaWiki Community Portal
> Anyone have any helpful insights? As-is, our talk pages are completely unusable
Because we expect either a NULL or a page object and not a boolean (true, false) as value according to [0].
Please open an issue with [1] and in the meantime you could try removing the type check [2] (change from "Page &$article = null" to "&$article = null").
[1] https://github.com/SemanticMediaWiki/SemanticMediaWiki
Cheers