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If the server is no longer available, unregister the server in the portal which will delete the server endpoints .
Server endpoint deletion fails, with this error: "MgmtServerJobExpired" (Error code: -2134347757 or 0x80c87013)
This error occurs if the server is offline or doesn't have network connectivity. If the server is no longer available, unregister the server in the portal which will delete the server endpoints. To delete the server endpoints, follow the steps that are described in Unregister a server with Azure File Sync.
Troubleshoot Azure File Sync issue:
If you still find any difficulties, please let me know I can work closer on this issue.
Hope this helps!
Kindly let us know if the above helps or you need further assistance on this issue.
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