A Sony PRS-T1 should be mounted by Windows as a MSD using the drivers built into Windows. And calibre already has the driver built-in to handle this device. From the error, we can tell that Windows is mounting the device and that calibre can see it. But, calibre is having trouble reading the database on the device. When Win10 was first released, there were problems accessing some devices from some upgraded PCs. This was sorted by Kovid changing exactly how calibre detected the devices. The error you are seeing is not similar to that problem.
If this is a new machine, it is probably worthwhile to do the checks in
My device is not detected by calibre. Hopefully something there will shine a lot on what is happening.