Hey Riot please help me my client is all black

Hey so when i start my league app on desktop the league logo comes up and then my launcher is all black and I can only see the Launch button on top and repair button. And it wont let me log in after i click launch because its all black even the login name and password is black. And what i have tried is i deleted lol and all folders then i reinstalled and this didnt help. I clicked repair and after it was done it didnt help. And now i cant play league my favorite game and i dont have this with other games only with league of legends. And i have windows 10 and my computer has all updated drivers. I run league as administrator too and didnt help. I hope you can understand and help me with my problem thank you. also this problem is since 2 days now..
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