It appears that it is for the wrong domain. In the “Certificate” windows, it is issued to verifyfail.luxymoon.live, not luxymoon.live.
Also, the certificate is for “All application policies”, not Server/Client validation. This could cause problems, but Server/Client validation is an application policy, so it should work.
Also, please look at this post of mine, it might help you:
Now, it looks like your certificate is from Let’s Encrypt, not “Qustodio (41453)” and is working. In the future, I would suggest using the SSL tool in the Client Area.