Finally found the guilty plugin: wpOptimize. Even if I had restricted the pages it should work on, and specified to only minimize js and css, not cac...

Not sure how to explain better. Any action on a button in Forums was redirecting to Forums (Forums for me is the equivalent of Community). So all butt...

False alarm, sorry ! I had a redirect which was causing the form to loop on Forums. I have not found the root of the problem, for now, but disabling m...

Yes, thank you, I found the guilty plugin in between...

Actually, I don't think Total cache is guilty here. Here is the source: <?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="tex...

Opeing the source, i see the page has been "optimized" by W3 total cache. I am going to exclude it, and report here.

Thank you for your answer, Chris. Basically I tried all what you suggest, but each time I was redirected to the banner. Happily, I had another instanc...

There is a serious problem with that code. Among them, "order" as column name on "wp_wpforo_forums" is a reserved word, and mysql trigger an sql synta...