Sorry, Service Is Temporarily Unavailable. In New Storefront

I have 2 domain on 1 hosting ,

I instal cs-cart on domain 1 with and fully work, but i instal second cs-cart on domain 2.

I create secont storefrond to domain 1 with all products and category.

But when open domain 2 is open home page only.

when a product is clicked we get this message. Sorry, service is temporarily unavailable.

any idea for helping

Additional information.

When i look source of error pege, i see :

Sorry, service is temporarily unavailable.

Something wrong with addon from AlexBranding. Please contact their support