I can't enter the loading screen after patch 9.14

After the new patch when I try to enter a normal game or tft or in practice tool the same things happens. After leaving the champion select, the loading screen should appears but it doesn't, instead the client appears with the reconnect button, after I press it nothing happens. I tried to reinstall, tried the hextech repair tool and the full repair and nothing. I tried sending a ticket to Riot but they said it was a problem from them and now its fixed, but it's not.
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