Failed to connect to supervisor port 80: could not connect to server

[Pwnyrider]

After a fresh installation of the addon on Debian 12 and HA Supervised I get the following errors:

s6-rc: info: service s6rc-oneshot-runner: starting
s6-rc: info: service s6rc-oneshot-runner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service fix-attrs successfully started
s6-rc: info: service legacy-cont-init: starting
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service legacy-services: starting
s6-rc: info: service legacy-services successfully started
curl: (7) Failed to connect to supervisor port 80 after 0 ms: Could not connect to server
[17:37:10] ERROR: �[35mSomething went wrong contacting the API�[0m
Traceback (most recent call last):
File "/src/main.py", line 27, in
main()
~~~~^^
File "/src/main.py", line 11, in main
mqtt_thread = mqtt.setup_mqtt()
File "/src/mqtt.py", line 16, in setup_mqtt
set_mqtt_settings()
~~~~~~~~~~~~~~~~~^^
File "/src/mqtt.py", line 91, in set_mqtt_settings
raise Exception("MQTT connection could not be established. Please check if your MQTT Add-On is running!")
Exception: MQTT connection could not be established. Please check if your MQTT Add-On is running!
s6-rc: info: service legacy-services: stopping
s6-rc: info: service legacy-services successfully stopped
s6-rc: info: service legacy-cont-init: stopping
s6-rc: info: service legacy-cont-init successfully stopped
s6-rc: info: service fix-attrs: stopping
s6-rc: info: service fix-attrs successfully stopped
s6-rc: info: service s6rc-oneshot-runner: stopping
s6-rc: info: service s6rc-oneshot-runner successfully stopped

Hint: This issue could be related to habuild/hassio-addons#75