Welcome to the forum @federico.ballarini
Google search found only two forum and four GitHub reports with text “Failed to fetch path information”, and only two had no further details on the error, as yours showed, so not much help, but may help a bit.
Restore from onedrivev2 backend fails with “Failed to fetch path information” #3531 went away after a suspected speed upgrade of the network, and was never present on command line, just on the web UI.
Failed to fetch path information in Pale Moon browser [unimportant] #2392 happened using some web browsers, and had a theory involving a timeout. One thing I notice in your post is that the list operation took a long time, almost 4 minutes. Could you talk about the destination you’re backing up to, such as what destination type it is, hardware speed (if yours), and the network speed going to the destination?
The error message itself is in code that runs in the browser, so you can also test either Using Duplicati from the Command Line fed by Exporting a backup job configuration As Command-line, or Using the Command line tools from within the Graphical User Interface which might be as good, and a bit easier.
Either way, you will need to convert The BACKUP command into The RESTORE command. The main difference is that the backup source path list becomes a filename for a small test, or * or nothing if you want all files. You probably want at least the –restore-path option set to some empty area to restore to.
Is this the first restore, or did it work before? Is this a test, or an actual recovery need? How much of it are you trying to restore, and how big is the backup? Information on backup size is on its home screen.
If you’d rather wait on the command line test, giving at least the above answers will be a start, and if it continues to fail on a normal Restore, then About --> Show log --> Live --> Information will summarize. Right now it’s hard to get an overview of how slow things go, other than the 03:51.716 directory listing.
Example of Information level live log (in one tab) from a simple restore using web GUI (in another tab):
Mar 20, 2020 8:09 PM: The operation Restore has completed
Mar 20, 2020 8:09 PM: Backend event: Get - Completed: duplicati-b1caea9a9d9bd4f6893effa81f93b43cd.dblock.zip (20.03 MB)
Mar 20, 2020 8:08 PM: Backend event: Get - Started: duplicati-b1caea9a9d9bd4f6893effa81f93b43cd.dblock.zip (20.03 MB)
Mar 20, 2020 8:08 PM: 1 remote files are required to restore
Mar 20, 2020 8:08 PM: Searching backup 0 (3/14/2020 10:56:53 PM) ...
Mar 20, 2020 8:08 PM: Backend event: List - Completed: (15 bytes)
Mar 20, 2020 8:08 PM: Backend event: List - Started: ()
Mar 20, 2020 8:08 PM: The operation Restore has started
Mar 20, 2020 8:07 PM: The operation List has completed