I am a web developer from New York.... I am getting an error when I try to add a new blog post with blogga.
here it is:
Warning: call_user_func(PageAttributeKey::getByHandle) [function.call-user-func]: First argument is expected to be a valid callback in /home/uniondat/www/clients/couturier/concrete/helpers/form/attribute.php on line 28

*NOTE - I have not changed anything inside helpers/forms/attribute.php

I have no clue why i am getting this error and need some advice. Please help!!