[Roko_foko]

pawn Код:

forward Check();
public Check()
{
    for(new i = 0; i < MAX_PLAYERS; i++)
    {
        if(IsPlayerConnected(i))
        {
            if(PlayerInfo[i][pPackageLoading] == 1)
            {
                SendClientMessage(i, COLOR_LIGHTBLUE, "You are now able to load more products.");
            }
            if(PlayerInfo[i][pPackageLoading] >= 1)
            {
                PlayerInfo[i][pPackageLoading] --;
            }
            if(PlayerInfo[i][pPackageLoading] < 0)// AND WHY DO YOU NEED THIS? I WOULD DELETE THIS.
            {
                PlayerInfo[i][pPackageLoading] = 0;
            }
        }
    }
    return 1;
}

this should work