Looking at the firmware number I probably should start by updating that first. But I have a question if my DVR-A07U is actually that and it's normal for the firmware to report as being a DVR-107D.
My DVR-A07U returns the following information:
PIONEER DVD-RW DVR-107D
Current Revision : 1.03
Release Date : 03/12/19
Model : Pioneer or Generic 3rd party model
Serial Number : CLDL000xxxxx
This firmware is already latest version.
This firmware does not need to be updated.