Unable to set NodeAndFileShareMajority quorum setting

Set-ClusterQuorum : There was an error configuring the file share witness '\\server\SharedFolder

Unable to save property changes for 'File Share Witness'.
    The user name or password is incorrect
At line:1 char:1
+ Set-ClusterQuorum -NodeAndFileShareMajority "\\server\SharedFolder'
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-ClusterQuorum], ClusterCmdletException
    + FullyQualifiedErrorId : Set-ClusterQuorum,Microsoft.FailoverClusters.PowerShell.SetClusterQuorumCommand

On this SharedFolder, I have given full permission to ClusterName and cluster nodes.

Let me know if you have any query.

Thanks for your help in advance!!!