@azhottie11
You said "I have a Tax Preparer so I’m assuming they automatically filed the Form 8332." The tax preparer cannot file the Form 8332, and you cannot file it. As the custodial parent, you have to sign the paper Form 8332 and give it to the noncustodial parent. The noncustodial parent has to attach the Form 8332 that you signed to their tax return. If they e-file they can mail the signed Form 8332 separately, attached to Form 8453 as a cover page.
To have any hope of figuring out why the other parent got an error trying to file their tax return, we would have to know, at a minimum, the complete exact error message, including any code.
You said you did not claim the child as a dependent, but you did not prepare the tax return yourself. Does the child's name appear in the Dependents section in the middle of the first page of your Form 1040?
