Notice: Undefined index: tag in adaptivetheme_field() (line 523 of adaptivetheme/at_core/inc/theme.inc

Yes,

For a strange reason somehow i discovered that production did not synchronise adaptive core and theme with correct versions.
Now both versions are 3.x so on display of the whole is going good. That's the good news. So anybody with this error synch the versions of core an adaptive according the module page

The bad news is that the galleri_io is displayed wrong in the header (in chrome and in ie) and i don't know how to solve it correctly.

It looks like that something is class region-header should be changed. I therefore use css injector but can't find out the correct css injections.

Any suggestions?

Some details changed