Have you tried contacting the maintainer of the TVH package for your platform?
https://www.asustor.com/app_central/app_detail?id=996&type=
It's possible that the TVH package for your platform has been modified to better suit its specific architecture/configuration.
You could try looking for the config files in /home/<user_name>/.config/hts and nuke them (after making a backup).
You can also rerun the Wizard from the GUI.

You could also search your NAS for any of the following files or directories:
accesscontrol/
backup/
bouquet/
caclient/
channel/
codec/
config
dvr/
epgdb.v3
epggrab/
imagecache/
input/
profile/
This could point you to where the current TVH configuration files are stored.