[ledgersmb-users] Template error: Printing Report to PDF or CSV

Hi all, We upgraded our LedgerSMB from 1.6 to 1.8 recently. Since the upgrade we could no longer print to pdf or csv. When we try, we get "Template error: file error - display_report: not found at lib/LedgerSMB/Template.pm line 566.". We are getting the same error with LedgerSMB version 1.9.2 and 1.96. but our version 1.6 still works ok. Kindly assist to resolve this issue. Thanks. Ismail