Unknown error! Cant login and when i do it is sooo slow!

Like, first i started a game but was too slow, so my premade started before i even got in champ select. {{champion:32}} Then i relog, and tried to reconnect, but got "Unknown error". And now i cant even log in to my account on my pc or mobile. Please help me? I could log in with my other account, but it was so slow, and now i cant even log in there. Help?
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