Check this KB article https://kb.msp360.com/standalone-backup/general/errors-and-warnings/vss-system-writer-does-not-have-permissions-to-read-service-accountVSS Error (code: 2404)
VSS System Writer does not have permission to read the service account. Event ID: 513
Read the instructions in the Knowledge Base article — LouVO
ERROR
An error occurred (code: 1003)
The creation of a shadow copy is already in progress.
Please contact support — LouVO
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