[AiRaLoKa]

i think it should be like this...

pawn Код:

CMD:robpizza(playerid, params[])
{
    if(!IsPlayerInDynamicCP(playerid, CP_pizza)) return SendClientMessage(playerid, COLOR_RED,"You are not in ....");
    if(pizzarobbedrecently >=1) return SendClientMessage(playerid, COLOR_RED, "Well Stacked Pizza has been robbed recently"); //checking if tatoo shop has been robbed recently and then stop the command

    ROBBING_PIZZA[playerid] = 60; // setting the robbery timer
    pizzarobbedrecently =180; // Time the players needs to wait for starting an another robbery in the same place
    return 1;
}

meanwhile your's is like this

pawn Код:

CMD:robpizza(playerid, params[])
{
    if(!IsPlayerInDynamicCP(playerid, CP_pizza)) return SendClientMessage(playerid, COLOR_RED,"You are not in ....");
    {
        if(pizzarobbedrecently >=1) //checking if tatoo shop has been robbed recently
        {
            SendClientMessage(playerid, COLOR_RED, "Well Stacked Pizza has been robbed recently"); // sending error message
        }
        ROBBING_PIZZA[playerid] = 60; // setting the robbery timer
        pizzarobbedrecently =180; // Time the players needs to wait for starting an another robbery in the same place
    }
    return 1;
}

you don't need to add culry bracket after "if" statement with a "return"

Sorry for my bad english