Crash when spawning a chest with /sable command

[Lazeoftheb]

Context

We had a server running with sable installed my friend ran a command that was "/sable spawn block chest" and that crashed the server, When trying to restart the server we got this crash. Any idea how to fix this?

once the the command ran server went into a loop causing ticks to stop then watchdog stopped the server.

Crash Report

https://mclo.gs/K0pbnq5

[luca1808]

i am said friend, and it appears to have screwed up our world.