HELP!!! Need riots HELP

My game (ridller1231) has a problem i cant play lol becuse it keeps me trowing into game and i stay at black screen. I dont know why it trows me into a game while i have no game going on check my op.gg. I Cant play lol becuse client drops me in game and pops up diferent kind of erors like bad video card no internet ect. I dont know what to do and theres no help online about this problem thnx.