Debugging of Cal.com API - error_log missing

[chopsol]

I am currently trying to retrieve information from Cal.com via the API.
Unfortunately, when I call the API at https://termin.example.org/api/v2/booking, I always get an ‘Internal Server Error’.
In the Cloudron host logfile under /var/log/nginx/access.log, I find the call with an HTTP code of 499.
Where can I find an error log that can give me more details about what the error is?
In the Cal.com container, the Apache and nginx log files are completely empty.

[nebulon]

the calcom package is not using apache or nginx. Cloudron has an nginx reverse proxy for all apps, but that is outside of the app package itself.

Calcom uses a nodejs based process to serve up api and assets.

You may be able to increase verbosity of that by setting some variables at /app/data/env. Check https://github.com/calcom/cal.com?tab=readme-ov-file#development-tip for the loglevels and env variables.