Error when uploading certificate

[Infinityfree25]

Ok, so I still have an SSL certificate issue with my website (talkstaind.rf.gd), the admin told me to try installing a ZeroSSL or GoGetSSL but I need help on installing those!

Could someone help me install these certificates?

[JohnLpool]

I have done a tutorial that may get approved soon, Have you done the CName Records?

[Greenreader9]

How to create the CNAME records for free SSL

To get a free SSL certificate from InfinityFree, you need to setup some DNS CNAME records on your domain name. This article describes how to do that. Like videos better? Check out the bottom of this article. Where do I set up the CNAME records? The CNAME records should be set up with the DNS hosting provider of your domain name. Most people will be using the InfinityFree nameservers ns1.epizy.com and ns2.epizy.com, or the byet.org nameservers. This means you can add the records to the control…

And

How to install an SSL certificate

In order to get a padlock in the address bar in your website, you need to install an SSL certificate on your website. This article describes how to do that. If you would rather watch a video, scroll down to the bottom of this article. Installing an SSL certificate The first step to install an SSL certificate is of course to get the SSL certificate. You will need to get your SSL certificate from a certificate vendor of your choice. InfinityFree also provides free SSL certificates in the client…

If you are still stuck, please let me know the specific spot where you are stuck.

Thanks