wiTech does not support Autel's PassThru or at least is not in the list of approved jboxes. At least that was my experience back in January 2021.
The way I got around it was to revert Java 8 to Java Runtime Environment 7 Update 25 and even then wiTech keep giving me errors.
I ignored the registration message, was able to continue successfully re-flashed the PCM and anti-theft but would certainly not do it again.