[Konstantinos]

Replace:

pawn Код:

sscanf(params, "u", playerid); return SendClientMessageEx(playerid, COLOR_WHITE, "USAGE: /gotoid [playerid]");

With:

pawn Код:

if(sscanf(params, "u", giveplayerid)) return SendClientMessageEx(playerid, COLOR_WHITE, "USAGE: /gotoid [playerid]");

EDIT: @Below users: Don't use playerid there (in sscanf) because it will mess it up.