Okay so this is starting to make more sense. The web app (the PHP files hosted on the Raspberry Pi) is no longer developed. Most likely anything you do interacting with the browser will not work correctly, especially if you update the firmware.
The Samsung Note 3 is in fact showing the correct app version so that makes sense. If you use the app on the Samsung device to “export configuration” and then update your firmware you can import to restore everything except program 9-17. I still haven’t gotten this data from you so I can’t help reconstruct it however knowing what will go away might help you know what to write down to return after the upgrade.