Authenticating error

Riot please fix this, my league won't let me log in and all i get is a screen that says "Authenticating..." i have contacted the support page but have gotten no response yet, i went through every connection guide, and went through all the network troubleshooting as well, my other accounts are able to log in, except for this one. I've been having this issue for 3 days now, and i'm really disappointed in Riot's lack of urgency to fix my issue. Please, if anyone knows how to solve this comment below.