Try.

1.- Open Project
2.- Open Calculate.cs (GAME/ATTACKING)
3.- Find " public static uint Melee(Entity attacker, Entity attacked, Database.SpellInformation spell, ref Attack Packet) "
4.- Search this Damage = (int)Math.Floor((float)Damage * 0.5);
5.- Added This new code :->
Damage = Damage / 2;

https://prnt.sc/PT7AqS6NuToM