What the heck?! ... Integrated Devices Not Loaded / Failed to set up

Hi All,
I’m a little over 2 months into my HA journey.
The last day or two I found I wasn’t able to control lighting (connected to hue bridge - which I’m slowly phasing out)
I tried restarting HA but then found none of the lights worked, including those directly connected to HA
This morning I tried a soft restart and then a power cycle (I pulled the power for 5 mins)
but still no joy - so I finally went to setting and saw a wall of pain - WTH?!

I have no idea where to start troubleshooting this, so any advice would be most appreciated

Check ha logs first. This is the first place to start.

Maybe a power outage and HA came up before your router abd when. Your router finally came up HA had already given up.

Try to click on the > and then restart/reload the integration.

There seem to be a lot of integrations notifying you there are issues. What are your logs saying?