Error when assigning a new Page Type.

When I try and assign a page to a new Page Type, I get this mess:

Fatal error: Call to a member function getThemeID() on a non-object in /home/content/21/7795621/html/concrete/models/page.php on line 772

ANY help would help me retain what hair I have left.

View Replies:
jelthure replied on at Permalink Reply
how are you assigning the page type? the regular way or from code within a package?
creawell replied on at Permalink Reply
I have the exact same probleme...

I think it come from my server but I don't know where ??

Maybe the wrong right in some folders ?

Do someone have any solution ?

Thank you ;)