In previous versions of this mod, when I wanted to take an enchantement out off an item, it would give me level back saying -N levels. But now when I take off an enchantment, is does not give me levels back. Please fix

I think getting levels back would be OP. I think you should not get any levels for removing enchantments.

I suggest to add a configuration option in addition to B:allowDisenchanting=true :
S:disenchantingXpFactor=0.5

Disenchanting will no longer give the player experience. There are plans to add this feature back through an alternative mechanic in a future version.