SSL Installation in WHM

Hello,

I got a SSL cert from FreeSSL so I can play around with it for one year however, it seems WHM doesnt install it properly, I had provided information correctly and it did restart the httpd then I go ahead and try test it and it keep popping up the warning message saying it doesnt match the information and that SSL belongs to the server main domain, not my domain.

Just becuase does WHM or Apache wont allow this virtual names for SSL?

How I can fix this? is it WHM error?

Thanks!