In last resort, it will use your Peertube public URI.So, any API Call will go throught your Nginx server.This could fail in some case: for example if you are in a Docker container, where the public hostname does not resolve to the correct IP.In such case, try changing the "{{% livechat_label prosody_peertube_uri_label %}}" settings, by setting `http://127.0.0.1:9000` (assuming 9000 is the port on which Peertube listen, ask your instance administrators if you don't know).
In last resort, it will use your Peertube public URI.So, any API Call will go throught your Nginx server.This could fail in some case: for example if you are in a Docker container, where the public hostname does not resolve to the correct IP.In such case, try changing the "{{% livechat_label prosody_peertube_uri_label %}}" settings, by setting `http://127.0.0.1:9000` (assuming 9000 is the port on which Peertube listen, ask your instance administrators if you don't know).