DuckDNS/LetsEncrypt - Config error

Configuration
1

I installed all as described here:


the first strange thing is
I can’t use https://my_blablabla.duckdns.org:8123 but only http.

My router is a Fritz!Box 7590
port forwarding is defined for protocoll TCP
port on the device 8123 - 8123
port extern 8123

Anyway, I can access the site localy and via the internet address.
But the fist window shows:
Config validating
Config error. See dev-info panel for deteails.

And there are a lot of this errors in the error log

Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/aiohttp/web_protocol.py", line 242, in data_received
    messages, upgraded, tail = self._request_parser.feed_data(data)
  File "aiohttp\_http_parser.pyx", line 519, in aiohttp._http_parser.HttpParser.feed_data
aiohttp.http_exceptions.BadStatusLine: invalid HTTP method

When I select on a different place “check configuration” I get: no configuration error.

2

And after a new restart I get even other errors:

2018-09-16 23:23:24 ERROR (MainThread) [homeassistant.core] Error doing job: SSL handshake failed
Traceback (most recent call last):
  File "uvloop/handles/stream.pyx", line 609, in uvloop.loop.UVStream._on_eof
  File "uvloop/sslproto.pyx", line 171, in uvloop.loop._SSLPipe.feed_ssldata
  File "/usr/local/lib/python3.6/ssl.py", line 689, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: HTTP_REQUEST] http request (_ssl.c:841)
2018-09-16 23:23:24 ERROR (MainThread) [homeassistant.core] Error doing job: SSL error errno:1 reason: HTTP_REQUEST
Traceback (most recent call last):
  File "uvloop/sslproto.pyx", line 504, in uvloop.loop.SSLProtocol.data_received
  File "uvloop/sslproto.pyx", line 204, in uvloop.loop._SSLPipe.feed_ssldata
  File "uvloop/sslproto.pyx", line 171, in uvloop.loop._SSLPipe.feed_ssldata
  File "/usr/local/lib/python3.6/ssl.py", line 689, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: HTTP_REQUEST] http request (_ssl.c:841)

But now http is no more working, but finally https.
But I don’t understand anything…

and I get new entries into the log every few seconds :frowning: