I create another problem because is my last is not resolved. I do not know why, but I can not connect when I'm in the Minecraft launcher I try to change the password, but its still not working

We are unable to diagnose your issue due to the lack of proper debug information. Please review the guidelines before reporting issues.
In case of a game crash, please also attach the crash log from [minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder].

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