For instance; Hunk_AllocateTempMemory: failed on 3528308 Some (custom) maps need more memory than ET is configured to handle, so ET will close down and gives you this error message. How to fix it? Go to the main menu of ET (if you are ingame) or start up ET. Bring down the console and enter /com_hunkmegs 128. Reconnect and the problem should be fixed.