Error: You may not apply more than the receipt amount

I tried to un-apply a deduction record DED801318, which is from Trade Management by performing the following steps but I got the error "You may not apply more than the receipt amount". This is a cash receipt and has no invoice related.

1. Responsibility: Oracle Receivables

2.Navigation: Receipts Summary

3.Open Receipt that is associated to the Deduction

4.Unapply the Deduction line from Receipt

The amount I want to un-apply is (1,166.76), and receipt amount is 42,668.93. How can I un-apply this amount? Please find details in the attachment.