Log errors, not recording BOSS death time

01/04/2020 10:11 cvcs#1
I recently found a lot of problems, I am newbie, so please tell me how to deal with errors that are not written to the BOSS log record

When I killed the BOSS on the obelisk file, Boss_Death_Log was not recorded at all. It was normal a few days ago, but it is no longer recorded after restart! Can you teach me the right way?