ClassNotFound Error InAddonsDataProvider

[DaniSix]

Hi,

After update Prestashop to the latest version (1.7.8.11) I got this error in the Backoffice: (Image Attached)

 

 

Attempted to load class "AddonsDataProvider" from namespace "PrestaShop\Module\Mbo\Addons".
Did you forget a "use" statement for "PrestaShop\PrestaShop\Adapter\Addons\AddonsDataProvider"?

 

Please, some one can help me with that?

I already have deleted var/cache folders.

 

Thanks!

[nikolaosp]

Have the exact same problem. When I turn debugging on i can get into the back office, but then my site does not work. it is a very pressing issue as it renders the site unusable