SSL stands for Secure Sockets Layer. It is a protocol to establish the encrypted link between a server and a client. To more about SSL please read our KB https://www.fastycloud.com/tips/kb/working-ssl-types-ssl/
We can simply uninstall AutoSSL certificate from cPanel account, but it will not affect in future because the AutoSSL will check SSL certificate for all domain under its account in every 24 hours and will install the new certificate if there is no certificate for any domain. This tutorial will help you how to successfully uninstall Auto SSL certificate from the addon domain.
1) Login to cPanel account.
2) Navigate to Security >> SSL/TLS Status.
3) Then select the domain name which you want to uninstall SSL certificate.
4) Then click on “Exclude 1 Domain from AutoSSL”.
5) Now you can uninstall SSL certificate and it will not install SSL certificate in next SSL checking time.
6) Now go to Security >> SSL/TLS.
7) Now click “Manage SSL sites”.
8) Now select the domain name which you want to uninstall SSL certificate and click the button “Uninstall”.
If you need any further help please do reach our support department.