#2 Jun 12, 2011 00:43
Not really sure what your problem is.
Let me ask this:
did you at any stage edit the file:
if you did, you should download b2evo version 4.0.5 and find the original file located at:
copy that file and paste it in the directory of your site at the same location.
when you get the error:
...then it means that some file is requesting a function which can not be found or does not exist.
If you can say which plugin or file you edited then maybe we can find a solution.