What's the problem?
Server attempts to load client sided class I18N, when trying to execute a piece of command from the console.

How to reproduce?

1. Text a piece of command into the console pane. The command might could only be from those banned by the helper mod "Mind".
2. Press enter.
3. Crashes, featuring a NoClassDefFoundError: net/minecraft/client/resources/I18n.

Server info?
The server was downloaded from the project's release page, and the version is 0.1.2. I ran the server pack directly on my laptop.

Log?
https://paste.ubuntu.com/p/jRtDR2gyvW/
This is the log when I tried to excute "/tp" via the console pane.

It has been fixed in 0.1.4,because we accidentally used a syntax that the server does not have (but you still can't use some commands)