1.7.2.4 order page - customer page not loading 500 error

[01Park]

I just managed to upgrade from 1.7.1.3 to 1.7.2.4

Everything looks to work good, but the orders, customers & customer services pages is not loading in backoffice. It will give error

Oops! An Error Occurred

The server returned a "500 Internal Server Error".

 

Any ideas whats wrong

[Neil Trinh]

You should turn "debug mode" on to see the problem in more detail: http://prntscr.com/kgjqki

 

Thanks!