Unable to find the card made by oneself before

I reinstalled the system on my device a few days ago, but when I logged in to this software again, I couldn’t find it. According to the backup records, I had already backed up around 2:40 on September 1st. However, after logging in again, I didn’t know why it didn’t show up, and I couldn’t restore the previous backup. I would like to ask if there is any solution to this.


Closing this as a duplicate of Unable to find the previously made card - #2 by dae