My sync key is outdated!

Hello, a long time ago I installed Brave on my computer. During the installation I saved the sync code in a file.
After a long time I formatted my computer and reinstalled Brave. I entered the required code in the Sync panel but unfortunately it told me that my code has expired.

The message is “This code has expired. Please create a new code on your other device and try again.”

How can I get my data back or was I wrong for choosing Brave?

Please, I would be very grateful if there is someone who can help me with this issue. That information was important to me.

Read everything at PSA: Current FAQ - #36 by Saoiray