Quite possibly corruption. Suggest you save a copy and do a compact/repair on this one and see what happens. You might have to try a decompile (open db with decompile switch - Google it if you need to). Cannot for the life of me understand why you would delete a module because its code is raising an error. It's like cutting off fingers or a hand of your database and expecting things will be OK and the same after that.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.