I can't log in to riot support center

Even though i am logged in the league of legends official site when i select the ''Support'' button i am not logged in my account. At first i thought it was a bug and i tried to log in while being in the riot support center but it didn't let me. Every time when i click log in this screen pops up and nothing else:[(https://imgur.com/a/GIZ3mmm)]
Report as:
Offensive Spam Harassment Incorrect Board