Out of range error.

After the recent update I'm unable to play the game, after champ select I get a black screen saying out of range. I've tried modifying the resolution through the config file (tried a low resolution and the resolution my display is set to) but to no avail. The game thought I was connected and my team couldn't /remake which cost me and my friend 20 lp and a 20 minute leaverbuster ban. Need help asap.
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