Try running check links on sales > receivables open and history, if it doesn’t fix:

Reverse one of the journal entries

- Financial > Transactions > General

To find Journal Entry number use the audit trail in CM20300 / origntsrc in GL20000 table


-                               Select * from CM20300 where RCPTNMBR = 'PMT-16-000254812'

-                               Select * from GL20000 where orgntsrc = 'RMCSH00037908'


   


 

Delete it from CM20300 table

    Delete CM20300 where RCPTNMBR = 'PMT-16-000254812' AND DEX_ROW_ID = '467903' 


Should be fixed now