In the batch there is mosquito so I think that it comes from my side but I do not see how to solve this problem. The addons are no longer available for installation.
My french is not so good.
Are the deleted from your HA OS installation, or did HA say the repository was deleted.? Repository deleted can be that there was a time-out connecting to github.
The File editor add-on has been removed from the repository from which it was installed. This means that it will no longer receive updates and that backups may not be restored correctly because the supervisor may not be able to create/download the required resources.
Clicking Validate will uninstall this obsolete add-on. You can also consult the Home Assistant help and the community forum to find out which alternatives to migrate to.
Just ignore it. Supervisor could not connect to Github, and says the repository has been deleted. Possibly a problem with Github (sometimes it times out), next time Supervisor checks the message will be gone.
If you have an idea I try supervisor reload and I have :
Can't clone : https://github.com/home-assistant/addons repository: Cmd('git') failed due to: exit code(128)
cmdline: git clone -v --recursive --depth=1 --shallow-submodules -- https://github.com/home-assistant/addons /data/addons/core
stderr: 'fatal: destination path '/data/addons/core' already exists and is not an empty directory.
'.
2025-07-10 21:04:27.117 ERROR (MainThread) [supervisor.store] Can't retrieve data from core due to