TLS cannot be trusted


#1

Hello
I use Cloudflare to have a secure SSL but as I know from some countries like Romania, it says that the TLS cannot be trusted. I use the FULL SSL certificate because I have subdomains connected to my main domain too.
my main domain is www.imeo-official.com
my subdomain that I am talking about is www.academy.imeo-official.com

Which type of SSL should I use?

P.S: Here is a screenshot of that from romania:


#2

The Cloudflare certs can only cover *.yourdomain.com, (i.e. academy.imeo-official.com) but not *. *.yourdomain.com, (i.e. www.academy.imeo-official.com). You either need to set up that subdomain without www or buy a dedicated certificate and add that hostname.