Credit memo showing in exception for F110

Hi,

I am having 27 credit memos in which 13 credit memos are showing in exceptions. But all the credit memo have the same currency code(USD) except for one credit memo the currency code(SGD). This is happening for only one particular company code for that vendor. When the paymeny was run the payment method was missing for these unsuccessful credit memos. How to rectify this?

Thanks,

Haritha