The Compiere client shows the following database error in business Partner screen:
        ORA-01400: cannot insert NULL into
       i clicked on partner Relations>business Partner Rules>Business Partner.
        Create a new business Partner record with all the mandatory details  and click the save button
the above said error shoots up.  
Next problem i got        
2)click on Requisition to Invoice>Invoice(Vendor)[Invoice Number:1000014
and 10000017] and click on "Complete "button.

The error 'terminated' gets displayed.
The status has  to get show  "Completed" but still it shows 'In progress'.
  Kindly help me in resolving the problem.