[Basicz]

Did you even compiled this

pawn Code:

public OnPlayerCommandText(playerid, cmdtext[])
{
      if(IsPlayerInRangeOfPoint(playerid,3.0,681.5620,-474.2185,16.5363))
      {
         SetPlayerPos(playerid, 678.2614,-464.6447,-25.6172);
          { // wha ??
           SetPlayerInterior(playerid, 1);
            { // wha ??
             SetPlayerVirtualWorld(playerid, 1);
             return 1; 
             }

Gosh, you put an opening bracket every function.

I don't think so it would work, when I'm in front of the door, I used /help, I'm in the interior.