Analyse issue "Expecting the instance to be stored in singleton scope, but..."
On 14/10/2021 around 1PM, the ECO PP transfer become unavailable with the error message: "Expecting the instance to be stored in singleton scope, but unable to find anything here.\r\nLikely, you've called UseInstance from the scoped container, but resolving from another container or injecting into a singleton."
It is important to find the cause of this issue to avoid that it happens again.
Remark: To unblock such issue, a restart of the app-pool has to be done.
Edited by SSandrine