I was using Baritone with Forge and a bunch of other mods, and the #mine command wouldn't work. It gave an error message saying the error was in the latest.log file. I tried using the #goto command, but the game just crashed after providing a similar chat message. I copied the latest.log error section to a separate text file for ease of use, and have also provided the crash report and a mod list.
#mine error log section.txt
crash-2021-08-30_15.39.36-client.txt
Modlist.txt

Can you reproduce with no mods and on a unoptimised jar?

this also happened to me

this also happened to me

can you try with the steps above then?

try turning all your settings to default, I accidentally turned on onlyPathCachedChunks in a new world so I couldn't path making a error and crashing the game

so try that