This is for D:OS 2?
Do you have a recent save made before you disabled the mod that added the resurrect skill?
Does the mod page mention if can be enabled mid game or needs a new game? Disabling a mod, resaving and enabling it again may cause problems.
For the 'ResurrectionSkillbook' mod, did you try crafting a new skillbook after enabling the mod again? (restoration skillbook + resurrect scroll + 1 life essence).
Can you switch to a similar mod? There is one that resurrects characters when you use a bedroll, for example (Rest-urrect - DEFINITIVE), though in that case it would not be usable in combat.
If you are playing on Classic or Explorer difficulty, lowering the difficulty to Story will give you a Resurrection skill that can be used outside of combat.
There is a D:OS 2 save editor
which should be able to remove the excess skill points.