No access to HASSIO "Header value is too long"

Moved my HASSIO to a new SD card and restored from a snapshot and get the following error after restarting.
Got more than 8190 bytes (8583) when reading Header value is too long.

Everything is running but I can’t access the main page, I only have access to my addons.
Log:

2019-01-19 18:55:58 ERROR (MainThread) [homeassistant.components.switch.template] UndefinedError: 'None' has no attribute 'attributes'
2019-01-19 18:55:58 INFO (MainThread) [homeassistant.core] Timer:starting
2019-01-19 18:55:58 ERROR (Recorder) [homeassistant.components.recorder.util] Error executing query: (sqlite3.DatabaseError) database disk image is malformed [SQL: 'INSERT INTO events (event_type, event_data, origin, time_fired, created, context_id, context_user_id) VALUES (?, ?, ?, ?, ?, ?, ?)'] [parameters: ('service_registered', '{"domain": "recorder", "service": "purge"}', 'LOCAL', '2019-01-20 01:55:47.608809', '2019-01-20 01:55:58.634104', 'a6518248f0f448c79463b4eddfed4cd1', None)] (Background on this error at: http://sqlalche.me/e/4xp6)
2019-01-19 18:55:59 INFO (SyncWorker_0) [pyhap.accessory_driver] Loading Accessory state from `/config/.homekit.state`
2019-01-19 18:55:59 INFO (SyncWorker_12) [pyhap.accessory_driver] Starting the event loop
2019-01-19 18:55:59 INFO (MainThread) [homeassistant.components.http.view] Serving /api/websocket to 172.30.32.2 (auth: False)
2019-01-19 18:55:59 INFO (SyncWorker_0) [pyhap.accessory_driver] Starting accessory Home Assistant Bridge on address 192.168.1.9, port 51827.
2019-01-19 18:55:59 INFO (Thread-4) [pyhap.hap_server] Got connection with ('192.168.1.11', 50750).
2019-01-19 18:55:59 INFO (Thread-5) [pyhap.hap_server] 192.168.1.11 - "POST /pair-verify HTTP/1.1" 200 -
2019-01-19 18:55:59 INFO (Thread-5) [pyhap.hap_server] 192.168.1.11 - "POST /pair-verify HTTP/1.1" 200 -
2019-01-19 18:55:59 INFO (Thread-5) [pyhap.hap_server] 192.168.1.11 - "GET /accessories HTTP/1.1" 200 -
2019-01-19 18:56:00 INFO (Thread-5) [pyhap.hap_server] 192.168.1.11 - "PUT /characteristics HTTP/1.1" 204 -
2019-01-19 18:56:02 INFO (Thread-4) [pyhap.hap_server] Got connection with ('192.168.1.121', 63161).
2019-01-19 18:56:02 INFO (Thread-6) [pyhap.hap_server] 192.168.1.121 - "POST /pair-verify HTTP/1.1" 200 -
2019-01-19 18:56:03 INFO (Thread-6) [pyhap.hap_server] 192.168.1.121 - "POST /pair-verify HTTP/1.1" 200 -
2019-01-19 18:56:03 INFO (Thread-6) [pyhap.hap_server] 192.168.1.121 - "GET /accessories HTTP/1.1" 200 -
2019-01-19 18:56:04 INFO (Thread-6) [pyhap.hap_server] 192.168.1.121 - "PUT /characteristics HTTP/1.1" 204 -
2019-01-19 18:56:04 INFO (Thread-6) [pyhap.hap_server] 192.168.1.121 - "PUT /characteristics HTTP/1.1" 204 -
2019-01-19 18:56:04 INFO (Thread-6) [pyhap.hap_server] 192.168.1.121 - "PUT /characteristics HTTP/1.1" 204 -
2019-01-19 18:56:05 INFO (MainThread) [homeassistant.loader] Loaded light.wemo from homeassistant.components.light.wemo
2019-01-19 18:56:05 INFO (MainThread) [homeassistant.components.light] Setting up light.wemo
2019-01-19 18:56:05 INFO (SyncWorker_2) [pywemo.subscribe] Subscribing to events from <WeMo Dimmer "Living Room">
2019-01-19 18:56:05 INFO (Wemo Events Thread) [pywemo.subscribe] Resubscribe for <WeMo Dimmer "Living Room">
2019-01-19 18:56:05 INFO (Wemo HTTP Thread) [pywemo.subscribe] Received event from <WeMo Dimmer "Living Room">(192.168.1.73) - BinaryState 1
2019-01-19 18:56:19 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/aiohttp/web_protocol.py", line 263, in data_received
    messages, upgraded, tail = self._request_parser.feed_data(data)
  File "aiohttp\_http_parser.pyx", line 523, in aiohttp._http_parser.HttpParser.feed_data
  File "aiohttp\_http_parser.pyx", line 649, in aiohttp._http_parser.cb_on_header_value
aiohttp.http_exceptions.LineTooLong: 400, message='Got more than 8190 bytes (8583) when reading Header value is too long.'
2019-01-19 18:56:19 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/aiohttp/web_protocol.py", line 263, in data_received
    messages, upgraded, tail = self._request_parser.feed_data(data)
  File "aiohttp\_http_parser.pyx", line 523, in aiohttp._http_parser.HttpParser.feed_data
  File "aiohttp\_http_parser.pyx", line 649, in aiohttp._http_parser.cb_on_header_value
aiohttp.http_exceptions.LineTooLong: 400, message='Got more than 8190 bytes (8583) when reading Header value is too long.'
2019-01-19 18:56:19 ERROR (MainThread) [aiohttp.server] Error handling request

had that phenomenon yesterday too. since i had other things to do and restarting the device (without changing any setting) worked i did not bother to evaluate the reason.

It appears to have something to do with SSL.

I just started getting this today on a HAOS instance that was working fine this morning. Only happens when I go through the Traefik ingress. But if I’m on the same network and hit the host directly, it works fine. Strange thing.