Hacs was working fine. Now all the HACS integration do not work any more. I think the HACS update failed, but I am not sure.
How should I procede to solve this problem?
HACS doesn’t have integrations, it is a custom integration that helps you load other custom integrations and lets you know when the ones you have installed on GitHub have been updated.
Most likely all your custom integrations have stopped, with HACS being one of them.
Now if you are 2 years after the update verom HACS 1.x to HACS 2.x then all bets are off.
So please be more specific on what versions you had, what versions you did update to, and what you see now. Any errors in the log? HA Versions? This will help with HA Versions only:
The version of HA are:
Core 2025.10.2
Supervisor 2025.10.0
Operating System 16.2
Frontend 20251001.2
HACS is pretty ok to me, please see HA update broke my HACS - HACS
seeing your version on 2.0.1, i think its indeed time for some attention 
