In certain scenarios where the attacker of a projectile is null, the server will crash. This was fixed in a twilight forest commit back in June, but it seems AOF5 hasn't been updated with it. There have been several Twilight Forest updates since then, so it is certainly fixed in the latest version of the mod). It was fixed in commit: TeamTwilight/twilightforest@fbfeacd
Crash log: 2022-07-29-3.log