Can't Login to my actual account

So the username to my actual account is Raxsasa251 but for some reason now out of no where I go to try and log into my LoL client and it gives me the error message saying my credentials do not match an account in our system. Is there a reason this is happening does anyone know how to possibly fix this I'm confused. I also can't make a support ticket because once again it gives me the error message that my credentials do not match an account in the LoL system. I just wanna play man :(