ERR_SSL_PROTOCOL_ERROR This site can’t provide a secure connection

Developer help Self-hosting
1

when i set up caddy like this vid

with my ghost stack on portainer

version: '3.1'

services:

  ghost:
    image: ghost:latest
    restart: always
    ports:
      - 2368:2368
    environment:
      # see https://ghost.org/docs/config/#configuration-options
      database__client: mysql
      database__connection__host: db
      database__connection__user: root
      database__connection__password: example
      database__connection__database: ghost
      # this url value is just an example, and is likely wrong for your environment!
      url: https://srimuang.duckdns.org
      # contrary to the default mentioned in the linked documentation, this image defaults to NODE_ENV=production (so development mode needs to be explicitly specified if desired)
      #NODE_ENV: development

  db:
    image: mysql:latest
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example

when i enter my domain it show

This site can’t be reachedsrimuang.duckdns.org took too long to respond.
Try:

Checking the connection
Checking the proxy and the firewall
Running Windows Network Diagnostics
ERR_CONNECTION_TIMED_OUT

when i enter IP it shows

# This site can’t provide a secure connection

**myip** sent an invalid response.

* [Try running Windows Network Diagnostics](javascript:diagnoseErrors()).

ERR_SSL_PROTOCOL_ERROR

what should i do ??