Get-PnPProvisioningTemplate failing with Object reference not set to an instance of an object

1. From https://lookbook.microsoft.com/details/34756b7e-e6f6-4327-ba4a-96494a50dca3 link we created the site

2.Then we run the script to get template for further customization

3.While processing the script "Client Side Page Contents" it fails with Object not reference,then we exclude the Client Side page content with the script - there it works but all the images are omitted

https://sharepoint.stackexchange.com/questions/254454/get-pnpprovisioningtemplate-home-aspx-error

I wanted all images and pages are get provisioned with template