Bug in visualize order after upgrade 1.5.5.1 to 1.5.6.4

Hello Everyone

Yesterday my shop have been upgrade from 1.5.5.1 to 1.5.6.4

All works correctly except 1 thing :

I can't go on "view" to any order in dashboard and in sales > orders

I have this error notice :

Notice: Undefined variable: vqmod in /home/carnassie/www/vqmod/vqcache/vq2-system_engine_controller.php on line 56
Fatal error: Call to a member function modCheck() on a non-object in /home/carnassie/www/vqmod/vqcache/vq2-system_engine_controller.php on line 56

So I can't change the status of order and generate my invocies.

This is really strange because I can go in sales> order and clic on edit order :/


If someone could help me ?

(i have the idea to try to turn off VQmod manager for test but I'm afraid to loose all stettings of Vqmod module allready install .

Tanks in advance

It looks like one or both index.php files have been overwritten with the upgraded version. Simply reinstalling VQMod (I would suggest to the latest version) should resolve the problem.

Infortunately doesn't work :/

Still the same message error

If you manually verify index.php file and admin/index.php file, do you notice the ::modCheck static methods near the top of the file?