Almost 4 years ago I wrote this article:
Centralised Office 365 Add in deployments with PowerShell
Upon review, it seems that the Finedtime addin is no longer available. I have therefore updated the script:
https://github.com/directorcia/Office365/blob/master/o365-addin-deploy.ps1
to remove this and prevent errors.
If you have any Office addins that you believe should be deployed as a ‘standard’ to all users in a tenant, please let me know and I’ll look at adding them to the script.
CIAOPS 