The MGS_AjaxCart module does not show the «The requested qty is not available» message to customers

[dmitrii-fediuk]

Go to the magento-downgrade-egsnbgq-6le7yxm6zbcym.us-3.magentosite.cloud/sueter-negro-manga-campana-w92580.html page, select the GDE option, and try to add 3 items to the cart.
The system will fail to do it and will not show any message to the customer.

upwork.com/messages/rooms/room_c8a03cdada4db6421374e078aadbbc70/story_a30c2c8fdc4563342b14667bd02593a5