It seems that recently 2 out of 4 of the x10hosting domains have been blacklisted on Facebook. This means you cannot publish anything with those addresses in it (".x10hosting.com" for ex.)
The only clear ones at the moment is pcriot.com and elementfx.com. Wonder what was on those domains that caused Facebook users to report them as abusive?
"Warning: This Message Contains Blocked ContentSome content in this message has been reported as abusive by Facebook users."