Seasons are automatically managed by Golden Records from scores. It uses the Type (eg Indoor) assigned to a round and the date the score was shot to determine the season the score should be in. If a round is not assigned a known type a season will be created as Unmatched XXXX where XXXX is the year the score was shot.
Check that all rounds have a known type assigned and then rebuild the seasons table.
Go to https://archery-records.net/clubs/seasons or https://archery-records.net/personal/seasons and open the Manage Data tool
Then click Rebuild Seasons Table
Please wait... it will take a second!