Board Thread:Support Requests - Community Management/@comment-5029965-20170506114124/@comment-2200849-20170506144946

Hey Ivan, the images not showing are because your custom site JS is broken. The offending code is at line 100 of MediaWiki:Common.js - you will need to refactor or remove it.

To ease debugging such issues, you can append the  URL parameters to the page URL to test if the issue is still present if custom site JS and CSS are not loaded. If this causes the problem to go away, then the problem is in your custom code.