Huilerie Sidi Bouzekri: every product photo has vanished from the site, replaced by empty frames

Huilerie Sidi Bouzekri, a family-run oil mill in Meknès (picholine olive oil, table olives), sells online at https://www.huilerie-sidibouzekri.ma, an App Service (app-sidibouzekri-site, resource group rg-sidibouzekri). The product photos are stored in the private container produits of the stsidibouzekri storage account; the site displays them using a read-only SAS token (Shared Access Signature) appended to every URL.

The contractor who built the site last year is no longer under contract. Since this morning, no photo is displayed; orders keep coming in, but far more slowly. Nothing was changed yesterday, neither on the site nor on Azure.

You have the Azure CLI (Contributor and “Storage Blob Data Contributor” roles on the account).