[DarkLored]

try this

pawn Код:

YCMD:freq(playerid, params[], help)
{
    new string[128],str[128];
    if(sscanf(params, "s[128]", str)) return SendClientMessage(playerid, 0xAFAFAFAA, ".: Usage: /freq [Freqence(100000-999999) :."); //FIRST ERROR.
    new freqx = strval(tmp);//SECOND ERROR and 3RD ERROR
    if(freqx > 999999 || freqx < 100000)//4th error
    {
        SendClientMessage(playerid, 0x2641FEAA, "Only frequence between 100000 to 999999 are susported!!");
    }
    else
    {
        PlayerInfo[playerid][pFreq] = freqx;//5TH ERROR
        format(string, 256, "Your radio frequence has been set to %d", freqx);
        SendClientMessage(playerid, 0x2641FEAA, string);//6TH ERROR
    }
    return 1;
}