Unsuccessful Invoice Posting - Sage 300 Construction & Real Estate

SOLVED

I am trying to post an invoice in the BL module but keep receiving the error, "The invoice already exists in the Billed file.'  I reinstated the invoice and regenerated several times, but this did not work; I keep receiving the same error message.  Has anyone else experienced this and can offer any help? 

Thank you! 

I am using Version 14.1

Katelyn