[MP2]

Ryan was halfway there by telling you that you need to use &&.

pawn Код:

if(!IsPlayerInRangeOfPoint(playerid, 2.0, 2103.9148, -103.5168, 2.27) && GetVehicleModel(GetPlayerVehicleID(playerid)) != 451)
{
    return SendClientMessage(playerid, COLOR_LIGHTRED, "Error{FFFFFF}: You are not at a fishing spot.");
}

That means:

If they are not at the point, and not in a reefer, they can't fish.