Hi RealKeith,
don’t know if you have solved the problem, but I’ve found this post while I’m searching on internet for the same error and I hope is usefull for someone else.
After a routine update of the server to the newest version of php my admin page give me that error, so I call the Server’s Assistance and they solved the problem modifying some setting that they have changed.
So this problem may not be referred to a code problem but, otherwise, to a wrong server settings.
Hope that it will be useful!
