Resolving the ‘PnP PowerShell Not Digitally Signed’ Issue If you’ve recently upgraded PnP PowerShell to the latest nightly build and are encountering errors when trying to execute any PnP PowerShell cmdlets, this guide is for you. PS C:\Users\RAuckloo> connect-pnponline -url https://contoso-admin.sharepoint.com -Interactive connect-pnponline: The 'connect-pnponline' command was found in the module 'PnP. PowerShell', but the module could not be loaded due to the following error: [Errors occurred while loading the format data file: \\contoso-it.