This question already has an answer here:
This is a silly bug, but I am reporting it anyway.
Steps to reproduce: Click edit on your profile. Then, without changing any fields, click Update.
Oops! There was a problem updating your profile:
- temporary error updating your profile -- please try again!
The error message is deceiving, I guess it is thrown because the
Update command returned zero affected rows and the result of the update turned out false; just a guess.