thx for your reply.. i just panicked since its my first PBN.In your .htaccess, set up a 301 redirect to force all connections to use http. Once Google re-crawls the page, it should be back to normal.
Most likely the problem came up because your host has autossl enabled. Personally, I leave the ssl settings at the server default in order to not stand out, but if you don't mind digging into the cPanel settings you can disable autossl entirely.