public CheckBan(playerid)
{
    new BanData[4] [100];
mysql_store_result();
if(mysql_num_rows() > 0)
{
cache_get_row(0, 6, BanData[0]); 
SendFormatMessage(playerid,RED,\"indok: %s\",   BanData[0]);
}
return 1;
}

Hol a Query?
 

format(g_szQuery, 256, \"SELECT * FROM `bans` WHERE `player` = \'%s\' OR `ip`=\'%s\'\", pName(playerid), IP);
      mysql_function_query(1, g_szQuery, false, \"CheckBan\", \"d\", playerid);