Error When Transferring App to my customer

I created an app from my individual developer account and I was able to sell it to an enterprise.
When I try to transfer the app from my account to the new Recipient's Account Holder Apple ID (after all criteria green ticks have been marked), there is an error that does not let you continue

The following error(s) occurred:
Attempt to insert null object into an com.webobjects.foundation.NSMutableDictionary.

Anyone found this problem and sorted out?

I am also facing the same issue, can any one found the solution please help me.

Error When Transferring App to my customer
 
 
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