Another HA problem, today it's HomeKit

After a restart all my HomeKit devices have disappeared from the Home App on my iPhone

Looking at the logs I find

No ACK from MQTT server in 10 seconds (mid: 65)
7:03:22 AM – (WARNING) MQTT - message first occurred at 7:03:22 AM and shows up 2 times
Setup of platform tado is taking longer than 60 seconds. Startup will proceed without waiting any longer.
7:03:11 AM – (ERROR) Water Heater
Setup of platform tado is taking longer than 60 seconds. Startup will proceed without waiting any longer.
7:03:11 AM – (ERROR) Climate
Waiting on integrations to complete setup: utility_meter, default_config
7:03:11 AM – (WARNING) bootstrap.py
Setup of platform mobile_app is taking longer than 60 seconds. Startup will proceed without waiting any longer.
7:03:11 AM – (ERROR) Device tracker
Setup of device_tracker platform mobile_app is taking over 10 seconds.
7:03:11 AM – (WARNING) Device tracker
Setup of water_heater platform tado is taking over 10 seconds.
7:03:11 AM – (WARNING) Water Heater
Setup of climate platform tado is taking over 10 seconds.
7:03:11 AM – (WARNING) Climate
Setup of utility_meter is taking over 10 seconds.
7:03:11 AM – (WARNING) /usr/local/lib/python3.8/asyncio/events.py - message first occurred at 7:00:03 AM and shows up 2 times
Setup of sensor platform mqtt is taking over 10 seconds.
7:03:11 AM – (WARNING) Sensor - message first occurred at 7:03:11 AM and shows up 4 times
Setup of binary_sensor platform mqtt is taking over 10 seconds.
7:03:11 AM – (WARNING) Binary sensor - message first occurred at 7:03:11 AM and shows up 2 times
Setup of weather platform met is taking over 10 seconds.
7:03:11 AM – (WARNING) Weather
Setup of switch platform mqtt is taking over 10 seconds.
7:03:11 AM – (WARNING) Switch
Setup of light platform mqtt is taking over 10 seconds.
7:03:11 AM – (WARNING) Light

What can I do?