Most of the searching seems to indicate an issue with migrations, in this instance we are simply working through the recommended upgrades in the Admin panel / docker all on the same server.
I did see some indications there may be a mechanism for deleting images automatically and our logo file may have been removed because the clean up mechanism thought it was unused.
From my searches I have tried various rake commands to no avail.
Questions:
Is there a way to recover the image?
How do I re-upload the image to brand header component? There does not seem to be an upload function.
How do we prevent the image from being auto removed in the future?
Merci @martym pour les informations sur la façon de résoudre le problème. Nous avons rencontré un problème similaire avec notre en-tête. J’ai également remarqué que certains autres fichiers ne sont pas accessibles (erreur 403), qui ressemblent à des images Discourse par défaut (ou du thème Mint que nous utilisons).