UNKNOWN LOG-IN ERROR ALL DAY LONG

im having this problem for a LONG TIME when i try to log in. After entering my password it starts logging in, authenticates with the server and all that, but after it goes to logging in, it just stays there and after a minute or two it just gives me an unknown error. MY LP IS DOWN BECAUSE OF THIS

After that i have 2 options : Send error to Riot Games and Dont send, Pressing send doesnt do anything and Dont send just puts me back to the Logging in part. It started like 2 days ago.

Now i really wanna get back into the game. If somebody know the solution i would appreiate it.