[MBilal]

Код:

new IsPlayerInModShop[MAX_PLAYERS];
this should be under OnPlayerConnect
// IsPlayerInModShop[playerid] = 0;
public OnEnterExitModShop(playerid, enterexit, interiorid)
{
    if(enterexit == 0) // If enterexit is 0, this means they are exiting
    {
      IsPlayerInModShop[playerid]  = 0;
    }
else
{
 IsPlayerInModShop[playerid] = 1; 
}
    return 1;
}

Then we will go Under OnPlayerDisconnect where you saving data.
before saving data add condition

if( IsPlayerInModShop[playerid] == 0)//when ==1 it mean he is mod shop
{

//here your saving data
}

Test it i didn't tested.