As asked, my game version is 1.0.0 with several mods installed.
System version Windows 10 20H2
Failures often happen when I kill a hedgehog, no matter what method is used.
This is the log file for the most recent game in which the error occurred。
https://github.com/Walker-BJ99/Logs/blob/main/game0.log
https://github.com/Walker-BJ99/Logs/blob/main/preview0.log
After testing, I found that a hedgehog with a specific name caused this problem.
His name is "FR%p%1 m:N".
It looks like the hedgehog with a special character name caused the problem when he was killed, and the problem seems to be resolved after I changed his name.