[Why]

I cleaned up the code a bit, got a better view of it and removed unnecesarry brackets, easier to track the problem then.

I found the source of the problem.

Thanks for the help.

Final code:

pawn Код:

CMD:loadtruck(playerid, params[])
{
    if(pInfo[playerid][pJob] == 1){  // If has the truckerjob (job 1)
    if(IsVehicleTruck(GetPlayerVehicleID(playerid))) // If is in a truck
    if(IsPlayerInRangeOfPoint(playerid, 5, 2197.8425,-2662.9883,13.5469)) // If is next to the loading point
    if(pTruckLoaded[playerid] == 0 && pCheckpoint[playerid] == 0) // If you don't have a checkpoint or trucking route, then
    CountDownCheck10(playerid); // execute the timer (loading truck screen)
    
    if(pInfo[playerid][pJob] != 1) return SendClientMessage(playerid, COLOR_WHITE, "You are not a trucker."); // But if you don't have the trucking job, return you are not a trucker and cancel.
    if(!IsVehicleTruck(GetPlayerVehicleID(playerid))) return SendClientMessage(playerid, COLOR_WHITE, "You are not in an Ocean Dock truck."); // If you are not in a truck, cancel.
    if(!IsPlayerInRangeOfPoint(playerid, 5, 2197.8425,-2662.9883,13.5469)) return SendClientMessage(playerid, COLOR_WHITE, "To load the truck, go to the loading garage in Ocean Docks, then /loadtruck."); // If not next to the loading garage, describe where to load it, and cancel.
    if(pTruckLoaded[playerid] != 0 && pCheckpoint[playerid] != 0) return SendClientMessage(playerid, COLOR_WHITE, "You already have an existing checkpoint or trucking route."); // If you already have a checkpoint or trucking route, cancel.
    return 1;
}