The script tried to execute a method or access a property of an incomplete object

Shopware 6 (English)
1

Hi,

I’ve just migrated to another server but I’m getting such error at homepage:

Shopware 6 Error: Shopware\Core\Framework\Rule\Container\AndRule::match(): The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "Shopware\Core\Checkout\Cart\Rule\LineItemProductStatesRule" of the object you are trying to operate on was loaded before unserialize() gets called or provide an autoloader to load the class definition

any help please?

Thanks.