Correctly configuring Alexa AppleStrudel in Node Red

I’m having issues with the Alexa Applestrudel nodes in Node Red and I’m just hoping someone can verify I’m not doing something to cause the issue when I try and configure my Alexa account.

I can successfully configure my account and send TTS requests to my Alexa devices, but after a while the nodes tell me I need to go to my ip HA ip address on port 3456 and I have to re-authenticate.

I followed the set up instructions and I’m using the following settings:

Auth: Proxy
IP: my ip
Port: 3456
Path: * See note below
Refresh: 3 days
Auto-init: On
Events: on

I then have the various service host etc. information set for my region.

With regards the path, I am not too sure what I need to put here? Can I just put something like /auth or do I need to specify an existing folder in my file structure? If the folder needs to exist where should this be located? I can SSH in to my HA server but I wouldn’t know the location I need.

I feel like this should be easy and I’m doing something wrong, so any assistance would be really appreciated.

If any further information is required I will try to provide it if requested.

Many thanks in advance