added the following sql files:
empty_frcscout: dump of empty database (no users, or any other non-requried data)
generateTestData: fills DB with test users, user roles, teams, events, matches and match records
deleteAddedData: cleans out all non-required data (users, user roles, teams, events, matches, match records)

I also added a button to the error page that redirects back to /frcscout/.