My Mineplex house has 'bad words' in it

No joke, every time I get to the 'create a house on mineplex, it ALWAYS  and I mean ALWAYS** says 'your house name has bad words in it' EVEN WHEN I TYPE 'HI' OR '(my username's) HOUSE. it even happens with my friends too! Please fix this I've always had this problem ever since the house thing ever came out