O.T. Genasis Says He Has No Idea Why Cops Busted Up His Birthday

[[tmz:video id=”0_nghxrv4d”]] O.T. Genasis says he has no clue why cops crashed his birthday party with shotguns out, ’cause there was no sign of trouble inside the event … just lots of bottles. We asked O.T. if anyone drew a weapon Wednesday night, as…