err 5766 - Error provisioning the local timer service instance during deploying of administration application pool credentials

this error happens when the application pool account password has been changed.

"Error provisioning the local timer service instance during deploying of administration application pool credentials, please provision manually. The password for the account NTDOMAIN\spa, as currently stored in SharePoint, is not the same as the current password for the account within Active Directory. To fix this with PowerShell, run Set-SPManagedAccount -UseExistingPassword."

 

To resolve the issue, run this powershell command.

Set-SPManagedAccount -UseExistingPassword 

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