Using the Management system on Open ERP Version 7.0-20140415-231321

When we run the Print Verification List the following error is displayed, any ideas on possible fix appreciated: -

Regards,

Kevin

operator does not exist: integer = boolean
LINE 1: ...ge.id FROM "document_page" WHERE document_page.id IN (false)...
^
HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts.

(<class 'psycopg2.ProgrammingError'>, ProgrammingError('operator does not exist: integer = boolean\nLINE 1: ...ge.id FROM "document_page" WHERE document_page.id IN (false)...\n ^\nHINT: No operator matches the given name and argument type(s). You might need to add explicit type casts.\n',), <traceback object at 0x0A2F2F58>)