There is no/bad markup for from tag

Support & Bugs
1

I have installed Piwik 0.5.4 and I get the error message There is no/bad markup for from tag (see picture).
When I press OK I see many widgets, the most appear twice. What can I do to solve this problem?

I have searched in the forum but didn’t find anything helpful.

Thanks
Manuel

2

Make sure you have mb.func_overload disabled.

3

Can you say me where I can do this?

4

php.ini:

mbstring.func_overload = 0
5

mbstring.func_overload has the value 0, so it should be disabled.
Do you have some other ideas?