Since you've followed the guide, you can grant the user access through the part
mysql> GRANT SELECT,INSERT,UPDATE,DELETE ON rathena4444\_rag.* TO 'rathena4444'@'your-ip';
Try this
comodo,191,157,4 script Set of the day 83,{
if (rewarded > gettimetick(2)) close;
mes"[Set of the day]";
mes "Welcome to FiestaRO!";
mes "Ready to receive your set of the day?";
next;
mes "[Set of the day]";
mes "Today's set is called ^FF0000 The Great Madara ^000000.";
mes "Set of the day only last for ^00FF00 3 hours ^000000 so make it count!";
sleep 1000;
rentitem 31874,10800;
sleep 5000;
rentitem 31895,10800;
sleep 1000;
set rewarded, gettimetick(2) + 86400;
close;
}