Redux mining issue

[KingGannon]

I got an issue when I go mining in a hidden mine map that does not exist in the normal game. I enabled mining for that hidden map and then started mining in the game then...

It gave me an error that looks like this
MaxDurability = BaseItem.AmountMax;

System.NullReferenceException: 'Object reference not set to an instance of an object.'
Redux.Structures.ConquerItem.BaseItem.get returned null.

Located at
Redux.Structures.Conqueritem.cs

 Spoiler

        public ConquerItem(uint _uniqueID, uint _staticID, byte _plus = 0, byte _bless = 0, byte _enchant = 0, byte _gem1 = 0, byte _gem2 = 0, bool _locked = false, byte _effect = 0)
        {
        	UniqueID =_uniqueID;
        	StaticID = _staticID;
            MaxDurability = BaseItem.AmountMax;  <--The error is in this line
            Durability = BaseItem.AmountMax;
        	Plus = _plus;
        	Bless = _bless;
        	Enchant = _enchant;
        	Gem1 = _gem1;
        	Gem2 = _gem2;
        	Locked = _locked;
            Effect = _effect;
            if ((EquipmentSort == 1 || EquipmentSort == 3 || EquipmentSort == 4) && BaseItem.TypeDesc != "Earring")
                Color = (byte)Common.Random.Next(3, 7);
            else
                Color = 3;
        }

Apparently, the system cannot read the MaxDurability line even if my pickaxe is equipped with full Durability.

It does not happen if I mine in a map like TC, PC, AC, DC mines
Only in the hidden mines and I want to make mining work in those hidden maps just like how the regular mines will work.
What to be doing now?