[Joske_Vermeulen]

badass indentation , try this

pawn Код:

if(strcmp(tmp, "!ABORT", true) == 0)
{
  if(SERVER_SHUTDOWN_STARTED == 0)
  return SendClientMessage(playerid, COLOR_RED_LIGHT, "{ADMIN} There is no timed shutdown in effect"); 

  KillTimer(SERVER_SHUTDOWN_STARTED);
  SendClientMessage(playerid, COLOR_YELLOW, "{ADMIN} The timed server shutdown has been aborted.");
  return 1;
}

if it still crashes, then this code is not the problem