[Scenario]

This should fix your problem, tell me if it works or not...

pawn Код:

public bla bla bla
if(dialogid == 104)
{
    if(!response)
    {
        SendClientMessage(playerid, COLOR_RED, "You selected exit, therefore you were kicked.");
        Kick(playerid);
    }
        if(!strcmp(inputtext, password1)) //checking if it is the players password
        {
            IsLogged[playerid] = 1;
            TogglePlayerControllable(playerid, 1);
        }
        else //incorrect password
        {
            ShowPlayerDialog(playerid, 104, DIALOG_STYLE_INPUT, "Invalid Password", "Invalid Password, try again", "Login", "Cancel");
        }
    }
    return 1; //returns 1, it has been handled
}