Forum:Unknown problem

Hello, from a couples of days an unknown error showed up on my wiki: for example, a poll (only one, not both of them) on the main page is substituted by this code, the new blog list by  , and other "lists" as well (but not the last changes list). The same happens on "my home" in the wiki activity, where there is a similar template with the "last change lists", but there even an input box is replaced by. The error shows up out of nowhere, then its not cause by "an accidental edit", because no edits were done before its appearance. Now this error showed up the first time a couple of days ago after a momentary problem with the wikis (the wikis weren't loading, I believe it were a common problem, and the only thing its appearances has in common (apparently, can be a coincidence) is the presence of a new comments on the only blog on the wiki (sadly). At first, I thought it was a conflict with two scripts we are using, one is a "toggler function" (click on "mostra", mostra means "show") used by this template and the other is a random function, but those scripts still work and even if I remove the templates that are using them the error is still present. After about a day the problem is solved without I did anything. Can you explain to me what happens on my wiki?
 * Also I have a glitch on my background image, if I remember correctly there is a blog here were I can segnalize it, or do I need to use the Special:Contact?


 * Wikia just rolled out some new code, it's probably just a glitch. Wait a little bit, and if it's still there then report it to Special:Contact.