If your SSL certificate is generating issues, a common reason can be the use of ipv6. To check if an ipv6 is being used, go to dnschecker.org, enter your domain name and choose to check the record type AAAA. This record type is used for ipv6. If an ipv6 is being used, your search results will reveal the record value.
Once you have the record value, go into the DNS records of your website, find the matching record, and deactivate it, allowing the website to resolve with the A record. This should fix the problem. Another reason for your SSL certificate generating issues is, most likely, your SSL certificate installation was not done properly on the servers hosting your site. If you are still having issues, you can contact our 10Web Care Team.