Unknown error when adding Homeseer integration

[d2bysma]

Hello,
I get an "Unknown Error" while adding the HomeSeer integration to HA. The log file (attached) shows the connection is correctly being made to HomeSeer, retrieving the devices and events, and then it stops with "Unknown Error". I have attached a screen shot of what happens when I click Submit on the second page of the configuration wizard, showing the error. I have made multiple re-installations, including deleting and re-installing the complete Docker HA container. Note the rather large number of HomeSeer devices and events. Any help would be much appreciated.

System
Home Assistant 23.11.2,
running in a Docker container on
Synology 1621+ with DSM 7.2-64570 Update 3

• this is a clean install and HACS + Homeseer are only integrations aside from those automatically identified by HA during installation

HomeSeer
HomeSeer Version: HS3 Standard Edition 3.0.0.297 (Windows)
HomeSeer: Is Registered
Operating System: Microsoft Windows 10 Enterprise 2016 LTSB - Work Station
OS Version: 10.0.14393 Service Pack: 0.0
LAN IP Address: 192.168.1.34 (HOMESEER-HA)
Number of Devices: 1714
Number of Events: 575

Thank you,
Mattias

home-assistant_2023-11-20T12-20-36.452Z.log