VentureChat error

[JustElC]

I use last night build of the Youer
When I send this command: /msg Just_ElC Just_ElC 1 server crash
There error:
https://pastebin.com/e48sndNg
Plugins and Mods in the log

[XUANHLGG]

This seems like a binary incompatibility on the plugin side.
The plugin may need to be recompiled against the correct Bukkit/Paper API for this server version.