I have just upgraded a CiviCRM install on Wordpress. Went from Civi 4.5x to 4.6.5. The site uses L10n (EN / FR).
I had two error messages when I first finished the upgrade. One was:
"civicrm Unknown extension: net.ourpowerbase.sumfields"
That one seems to have resolved itself.
The other is: "Error loading module file (). Please restore the file or disable the module."
This error appears both in the admin area of CiviCRM and on the front end where profile forms are used.
I have no idea where to start looking to fix this! I found one post about drupal, but that didn't help.
Any assistance would be greatly appreciated.