Hey guys, just giving you a heads up on what's going on with the Chat issues. As of August 3rd, Wikia has issued this statement;
"Hello,
Many of you have noticed on your wikias that Chat has been crashing or down in the last few days. Wikia is aware of the issue and actively diagnosing the issue and testing changes to our chat configuration, even over the weekend.
We apologize for the inconvenience and thank you in advance for your patience! We will get you back chatting normally as soon as we possibly can."
So we just have to be patient and wait it out. Chat is still a Beta feature of Wikia, so issues are to be expected.