functions_editor fails

[Thheizz]

I'm busy making my own add-on for Vb. It'll be similar as the Custom Userpage script amykhar (which is great, but I need a bit more).

Anyway, I get the following error message at my editing page with the WYSIWYG message editor:

Warning: Invalid argument supplied for foreach() in functions_editor.php on line 527

The editor itself looks (lay-out technically) fine. But you can't click on any of the buttons. Next to that the lay-out of the typed text is shown in HTML

I cache all the templates (also tried without), because i read that could be a problem. Any more ideas?

[Thheizz]

Fine, the the WYSIWYG-editor works. But, eventhough everything works. I still get the error message.....
Guys, plz, try to help...