[Freedom.]

Check for is player id entered:

Код:

else if(!strcmp(packagetype, "select", true))
{
	if(player == -1)
		return SendClientMessage(playerid, COLOR_GRAY, "/unpackage select <player ID>");

	if(!IsPlayerConnected(player))
		return SendClientMessage(playerid, COLOR_GRAY, "id not found");

	// ...
	
	return 1;
}