Add informative error handling

This is a snip from the ado project 

```powershell
 $PSCmdlet.ThrowTerminatingError(
 [System.Management.Automation.ErrorRecord]::new(
 ([System.Management.Automation.ItemNotFoundException]"Not connected to Azure DevOps, please run Connect-AzDevOpsOrganization"),
 'Projects.Functions',
 [System.Management.Automation.ErrorCategory]::OpenError,
 $MyObject
 )
 )
```