→ Your backup was created with a database version (crypt14) that the old APK cannot read. No workaround exists except upgrading.
→ Clear app data (Settings > Apps > WB > Storage > Clear Data) and try again. Do not restore backup immediately. Final recommendation Use an old version of WhatsApp Business APK only as a temporary bridge (e.g., 30 days). For daily drivers, critical sales, and customer support, always update to the latest Play Store version. Need the latest version? [Link to Play Store] Looking for a specific old version number? Use the search box below (APK archive integration).