and there is no message below and i can't create an user ...
i use v1.11.0-rc1 (e321982)
Version de MySQL 10.0.36
Version PHP 5.6.37
sometimes it happens an HTTP ERROR 500
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Environment details? (webserver? php ver? etc)
I do not recommend running 1.11-rc1 in production. It is buggy test software (read as Beta).