With the latest MediaWiki version the skin it is not possible to use the skin, due to the use of removed function Sanitizer::escapeId which needs to be replaced with Sanitizer::escapeIdForAttribute.
I've marked the skin as unstable on mediawiki.org until this issue is resolved and have submitted a pull request to fix the problem.
With the latest MediaWiki version the skin it is not possible to use the skin, due to the use of removed function
Sanitizer::escapeIdwhich needs to be replaced withSanitizer::escapeIdForAttribute.I've marked the skin as unstable on mediawiki.org until this issue is resolved and have submitted a pull request to fix the problem.