Unable to view Contracts Deviation Report

Nav > Query a Sales Agreement in R12 > Open Agreement > Select Contract Terms button>Actions menu at top right corner > Select Validate > Click Go > Resolve any warnings > Rerun validate step as needed > Select Return to Blanket Sales Agreement hyperlink > Contract Terms > Actions menu again > Select Review Contract Deviations > Select Go button  and receive error "you have encountered an unexpected error" contact your system administrator"   Could this be a responsibility issue?