EPM Error on new brand :

Hi Everyone,

Error :
Class '\FreePBX\modules\Endpoint\EndpointSnom' not found

I'm trying to add Snom brand to my EPM . on a fresh FREEPBX 13 installation.
upon selecting snom brand I'm presented with the error above.
I'll appreciate any help .

Whoops \ Exception \ ErrorException (E_ERROR)
HELP
Class '\FreePBX\modules\Endpoint\EndpointSnom' not found
/var/www/html/admin/modules/endpoint/EndpointCommon.class.php

Thank you .