Watermark is enabled. but not showing as out of stock label.

Watermark is enabled. but not showing as out of stock label. Please check and solve it.

Also We need to make the entire product as out of stock, if any of the popup selection items are fully outof stock. Please check and provide me the solution.

https://eppnewclone.mystagingwebsite.com/heritage-discovery-set/

This is the issue page check it