Server crashed after a few of these messages. Not sure if they are related or if the crash was just because of the high volume of users. Errors are below
18:39:16 L 02/21/2012 - 19:38:25: Lua Error: Timer Error: [@gamemodes\postnukerp\entities\entities\npc_chemgrub\init.lua:167] Tried to use a NULL entity!
18:39:23 L 02/21/2012 - 19:38:32: Lua Error: Timer Error: [@gamemodes\postnukerp\entities\entities\tool_super_miner\init.lua:102] Tried to use a NULL entity!
18:39:12 L 02/21/2012 - 19:38:22: Lua Error: Timer Error: [@gamemodes\postnukerp\gamemode\base\mobspawner.lua:304] Tried to use a NULL entity!
First two errors are setting the models for each. Third error is setting position for a resource piece. Unsure which may be the issue, but in every case, it would be because the entity was never created. We may need to do some checks.