Platform crashes after user deletion

[SamuelHassine]

Description

1. First issue, on testing platform:

[
    {
        "message": "Cannot read properties of undefined (reading 'internal_id')",
        "locations": [
            {
                "line": 190,
                "column": 3
            }
        ],
        "path": [
            "me",
            "effective_confidence_level"
        ],
        "extensions": {
            "code": "INTERNAL_SERVER_ERROR"
        },
        "name": "INTERNAL_SERVER_ERROR"
    }
]

2. Second issue, when something like this happens, it reload forever instead of just crash the frontend with the error message:

20250126-1810-06.6059132.mp4

[romain-filigran]

The problem seems to be linked to a user deletion that has not been correctly managed (a priori we're trying to read from the cache a user that has been deleted).