ORA-02290 on Post insert trigger forms 3.0

 Hi Folks,

         A 3.0 form I developing is returning an error on a post-insert trigger. The trigger is designed to maintain a log table of transactions. The table has an automatic sequence number generator. The error returned  is :-  

  "frm-40735 post-insert trigger raised unhandled exception ora-02290"

 Ora-02290 is not listed in my Oracle error documentation. The same triggers  work fine on the same log table elsewhere in the same form.

  All help will be greatfully received - please mail me direct !

         
                                    Michael.