Undefined index: und in media_gallery_form_alter() error messages

Hi

After updating a number of modules, including media gallery to latest recommended yesterday I get a whole list errors wheneverI try to edit media on a page. Hier is a sample:

Notice: Undefined index: und in media_gallery_form_alter() (Zeile 935 von /home3/ad/public_html/sites/all/modules/media_gallery/media_gallery.module).
Notice: Undefined index: und in media_gallery_form_alter() (Zeile 935 von /home3/ad/public_html/sites/all/modules/media_gallery/media_gallery.module).
Notice: Undefined index: und in media_gallery_form_alter() (Zeile 935 von /home3/ad/public_html/sites/all/modules/media_gallery/media_gallery.module).
Notice: Undefined index: und in media_gallery_form_alter() (Zeile 935 von /home3/ad/public_html/sites/all/modules/media_gallery/media_gallery.module).
Notice: Undefined index: und in media_gallery_form_alter() (Zeile 935 von /home3/ad/public_html/sites/all/modules/media_gallery/media_gallery.module).

I had postponed updating media module to latest because to lacked the Media Bulk Upload, which was causing problems but did so when I noted the latest Media 7.x-2.0-alpha3+46-dev has one.

This did not take the above problem away. It looks quite ugly having a long list of errors on a site I am just above to hand over.

In the previous version of the module, together with media & entity files, this error is not there on a site with similar content.

I would appreciate some help. ;)

Kind regards