Does it continue updating the aircraft though?
Or does the error stay?
Maybe your sd-card is just damaged and 3.6.3 has been working by chance.
You can always use Raspbian Buster Lite and install piaware/dump1090-fa via the packages as another option.
Anyhow if you want to further debug the problem, you will need ssh access to the system:
For Beginners - How-to SSH to RPi - Setup Putty in Windows
Otherwise it’s just guessing what could be going wrong.
With ssh you can check several logs, lighttpd and dump1090-fa would be the first ones to check: Debug commands · wiedehopf/adsb-wiki Wiki · GitHub