I recently updated Concrete5 and had a few issues that have been resolved. But today I went to make a new post using Blogga and when I chose the Blog category this appeared, "Warning: call_user_func(PageAttributeKey::getByHandle) [function.call-user-func]: First argument is expected to be a valid callback in /hermes/bosweb/web152/b1526/ipg.pinxter/concrete/core/helpers/form/attribute.php on line 28" Then I proceeded anyway and entered the description and proceeded, it created a page with the correct title and description. After that I went to the page and updated it adding two blocks. This message appeared:

"Fatal error: Call to a member function setAttribute() on a non-object in /hermes/bosweb/web152/b1526/ipg.pinxter/concrete/core/models/collection.php on line 239"

I'm not sure what either error message means or how-to correct them, but the page appears to work fine and has the updates on it. If anyone knows what the two messages mean and how-to address them, I would appreciate the feedback. Thanks :) Although the website seems to be working I'm sure it would be best to fix the errors.