Dans ton "fn_vehicleShopLbChange.sqf"
Essaye ceci plutôt:
if (life_veh_shop select 4) then {
ctrlEnable [2310,true];
} else {
if (_className in (LIFE_SETTINGS(getArray,"vehicleShop_rentalOnly"))) then {
ctrlEnable [2309,false];
} else {
if (!(life_veh_shop select 3))...