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White Screen in Backend


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Hey guys!

I wanted to add a module. I therefore needed to connect to the Moduleshop from Prestashop trought the backend.

After logging in there was just a white screen.

I went to the file defines.inc.php to let it display the error.

It is the following:

Fatal error: Undefined class constant 'MODE_CONTRIB' in /var/www/vhosts/XXXXXXX.de/httpdocs/classes/controller/AdminController.php on line 405


This is the line number 405:


            $this->context->mode = Context::MODE_CONTRIB;


Can anyone help me?

Thanks in advance

Edited by Balscht (see edit history)

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