DuckDNS, Nginx SSL Proxy wss error on Chrome

Hello. I have installed my Home Assistant Supervised on rasperry pi with IOTStack and docker containers for portainer, pihole, nextcloud. On my HA installation I installed DuckDNS and NGINX Home Assistant SSL proxy addons. I set my pc dns to pihole and added dns record from my duckdns url to pi ip. Everything worked yesterday but today using chrome i’m getting

“Unable to connect to Home Assistant.”

error alongside with console output

"WebSocket connection to ‘wss://myduckdnsurl.duckdns.org/api/websocket’ failed: "

“Uncaught (in promise) 1 lovelace:1”.

Everything works from outside network or firefox browser. Can anyone give me any suggestions on what may be wrong and how I could fix it?