Showing permission error on variant generation

Hi Guys,

In a new shopware installation with version 5.5.10, we are getting an error of „Failed to create the attribute models, please check the permissions of the ‚/html/authenticblonde_alt/var/cache/production_******/doctrine/attributes/‘ directory“.

Situation is when creating configuration option from the backend. 

I selected a configuration group and and add configuration option, and the above error occured in the console.

I have tried following,

1. Given even full permission (777) to var folder

  1. Removed production_**** folder and cache cleared.

  2. Run repainred php script from the shopware. (Use in the 5.2.* shopware)

Nothing worked.

What may be the reason?

Thanks in advance

The exact error is as follows,

Fatal error : Uncaught Doctrine\ORM\Mapping\MappingException: No mapping found for field ‘configuratorGroup’ on class ‘Shopware\Models\Attribute\ConfiguratorGroup’

Is there any new repair key script available for shopware 5.5.10?