Configure Server
From configure Settings you can checked to yes Wildcard Subdomain is created or not for the software. if not create then you just checked to no the radio and click on save button. if you checked the radio with yes then you need to create Wildcard Subdomain for the software. - How to create a Wildcard Subdomain in cPanel
How to create Wildcard Subdomain cPanel
if you checked wildcard subdomain is yes in server settings then you need to create wildcard subdomain in cpanel.
Step 1: Login to your cPanel account . e.g https://yourdomain.com/cpanel or https://yourdomain.com:2083 and enter your cPanel username and password.
Step 2: Go to the Domains section or search for subdomains in the search box then click on subdomains icon.
Step 3: Under the Create a Subdomain section, enter * in the Subdomain field and select the domain name from the drop-down list. e.g *.yourdomain.com and finally set the Document Root to public_html or where the software already installed.
Step 4: Select path and both path should be same. e.g if you installed the software in public_html/crm then set the Document Root to public_html/crm
Important: If you have installed the software in a subfolder, you should specify the path to that subfolder instead of public_html. the both path should be same. e.g if you installed the software in public_html/crm then set the Document Root to public_html/crm
Here is the few screenshots of create wildcard subdomain in cpanel
