click the link below and download the compressed file top_fpga.par file. It is missing the .qar file. Therefore the example cannot be loaded.
The .par file you download is a template file. As stated on that page, you have to install and use the design template using the New Project Wizard or just double-click it in newer versions of Quartus.
May I know below details,
Please try again with template of the same version of Quartus Pro which is installed on your machine.
Here is Q19.1 Pro screenshot,
Please let me know if you have any different issue.