You are not eligible to create a lobby for this queue.

Today, I went into champion select, and everything went normally, until the game was about to go to loading screen, when it just stays on champion select. Soon after, I get a notification saying that the game was unable to start. After that, I try to go queue up a new game, but I get a message saying that I am not eligible. I try restarting my client, but even after that I can't start up a game. I can't start up a game on any queue. What's happening? UPDATE:
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