Cant add ssl to my wevsi

My website URL is: officialarca.epizy.com

What I’m seeing is: what i see - Album on Imgur

I’m using this software: sslforfree.com

Additional information: I’m trying to add an SSL to my site using sslforfree but it keeps failing, showing the message in the image above

https://infinityfree.net/support/cannot-use-or-have-problems-using-lets-encrypt-or-sslforfreecom/

That KB article should be updated.

Now InfinityFree has its own SSL generator:

But that generator works only with domains, not subdomains, because of the Let’s Encrypt rate limits.

Maybe make some notes like: “If you have your own domain …”