Nothing happens after /auth, just kicked..

Hi! I setup my own Rust server, installed oxide and the plugin authentication. Set the config and when my friend connects to the server he get the message that he need to enter the password or else he will be kicked within 30sec.
So he enters the password in the console "/auth PaSSwOrd" and nothing happens. Then the message comes up that he took to long to enter the password and being kicked. So even if he enters the password within time, he still getting kicked. What is wrong?

Tried both v2.1.2 and v2.1.1, same issue

You must write password on chat not on console, I did the same failure.