NoLongerEvil HA integration

Hi All,
I just set up my gen2 nest thermostat with No Longer Evil. I used the NLE hosted option, not the fully local version, and it works well thru the web interface. I have been trying to get the HA integration working for the past few days, with no luck. I can get it installed, but if I click on the integration, I get this error:

Error

Config flow could not be loaded: 500 Internal Server Error Server got itself in trouble

I also have activated debug logging, but I don’t get the option to select NoLongerEvil to see the logs in Settings/System/Logs.

Can anyone enlighten me on how I should proceed from here?