Server crashes after changing register=false and others to true

[shirospyro]

Describe the bug

I'm running a reforged Pixelmon 8.2 server with other side mods. When I installed AuthMod mod in the mods folder with the default configuration, the server loads, and I can join the server but was unable to run the command (though the chat showed the /register command).

I shut down my server and went to the config folder and changed the /register=false and others to true, the server is now unable to run.

To Reproduce

Steps to reproduce the behavior:

1. Install AuthMod 1.0.1 on mods folder.
2. Run the server
3. Join the game
4. Quit the game and shut down the server
5. Change the authmod config file for /register and others to true.
6. Server crash

Expected behavior

Server runs properly with the Authmod mod activated.

Versions

AuthMod 1.0.1 and Minecraft 1.12.2

Log files

crash-2021-08-18_18.51.41-server.txt

[grognatou]

same bug for me

[grognatou]

and in 1.00 vertion

[RainVaporeon]

Can reproduce with the same error