I tried to e-file yesterday but was rejected due to an issue with form 2441 child/dependent care expenses. Below was the explanation from the email but I do not understand what specifically is wrong. Can someone explain? Thanks in advance.

"The IRS has rejected your federal return. This means that your return has not been filed.

Here's the reason for the rejection:

Field/Xpath: /efile:Return[1]/efile:ReturnData[1]/efile:IRS2441[1]/efile:CareProviderGrp[1]/efile:USAddress[1]
Issue : Business Rule X0000-005 - The XML data has failed schema validation."