SOLVED: Android app doesn't load anymore. Plus web address changed after update

[TheDreadPirate]

Just remembered something. In your nginx config add in a cert file that contains the full chain.

Code:

ssl_certificate /etc/letsencrypt/live/jellyfin.domain.tld/fullchain.pem; #### like this one
    ssl_certificate_key /etc/letsencrypt/live/jellyfin.domain.tld/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/domain.tld-0001/chain.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot