'Plesk Lets Encrypt SSL: Adding dynamic wildcard SSL certificate

So I have an application which handles all subdomain redirection, for example:

www.mywebsite.com
abc.mywebsite.com
xyz.mywebsite.com
....

It works with the redirection, but I cannot secure it with SSL, bellow is the screenshot

enter image description here

The wildcard is enabled, but this is what I get when I go to my url:

enter image description here

I thought wildcard suppose to work with any subdomain?


I have contacted my web hosting, they said I have to create the subdomains manually. My application is designed to handle all requests from subdomain. For example each user has their own store name, then my website serves the data for that store only.

mystore.mywebsite.com
mybeautifulstore.mywebsite.com
...

Is this possible without creating each subdomain manually?



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