You’re migrating from a SharePoint site to a SharePoint site, and you’re missing many pages in the target site:
You need to make sure that the custom script is enabled in your target tenant.
SharePoint Online requires the custom script to be enabled to migrate the pages. Otherwise, you’ll get the following error for the pages: “Blocking web file because NoScript=true, list item ID: 8a00156d-554d-42bc-9f20-30f00b9ed3c1, destination library ID: 22332bb5-2eac-45f5-a612-1b27a9e245e3″
Please refer to our documentation to enable the custom script: 2.4.2. Enable Custom Script from the admin guide: