Renowned streamer Clavicular is claiming to be owed serious dough from his ex-business partners ... and he's fired off a legal letter. TMZ obtained paperwork sent to Hai Waknine and Christina Waknine , in the nightclub, Bacara, which is famous for being the first club where streamers can film content inside. Clavicular's lawyer claims the influencer, who is only 20, invested $400K into the club in exchange for a 50% cut. Rapper Mystikal was just sentenced to 20 years behind bars ... after