i have been creating "new topics" for Super Smash Bros. Brawl but all of a sudden it said i am unable to post on the board, but i can post on this one!! HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:(

i have been creating "new topics" for uper Smash Bros. Brawl but all of a sudden it said i am unable to post on the board, but i can post on this one!! HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:(