Solution
Please try to download the required folder directly from your mid server with this url
If the Training resources.zip folder has not been pre-installed on your MID server, simply copy this link
https://servicenow.sharepoint.com/:u:/s/CDevExternal/EU2tab16OiVHnHYS3cN6No4BReHSc0O9TiOtpy1QX13kgA?e=dP3vRM&download=1
and paste it into the browser on the MID Server, then it will download the required files to the MID Server.