We store a backup of koha on version 21.05 and use a live version on 21.11. The database on the backup displays data in fields, whereas those same fields show up empty in the live version. For example 040$c shows data in version 21.05, but the same version of the database does not show data in version 21.11. Thank you for your assistance
This is more likely a support issue and would be better suited for the mailing list or IRC chat. If you don't have a support provider you can contact, you can find the community support channels here: https://koha-community.org/support/community-support/ You didn't include where the fields don't show. Make sure you add more information on how the problem manifests and what steps you already tried. Did you make sure the field is set to visible in your frameworks?