If you happen to get the ERR_SSL_PROTOCOL_ERROR error, most likely there is something wrong with your SSL certificate. If you don't have an SSL certificate installed yet, it's a great opportunity to consider our Lifetime SSL, you can easily install it on hPanel.
If you do have an SSL certificate installed and are still seeing this error, there are some things you can do:
Try to clear all of your browser history and cache or check the website through incognito mode
Use SSL Checker to check if your SSL certificate is valid. If it’s not, you might want to contact your current SSL provider. If you are using our Lifetime SSL, leave us a message, and we will check it for you!
Temporarily disable antivirus and firewall programs
If you have done all the steps, and you are still seeing this error, please contact our Customer Success team.