Shahjada

Please send me temporary wp-admin login info in a private reply to check your issue.

You can embed it on page with template tag [download_link_extended]

I’ve tested the following package and it worked fine:
https://acsmotioncontrol.com/download/spiiplussc-hardware-and-software-requirements/

Please download it from here https://www.wpdownloadmanager.com/user-dashboard/?udb_page=purchases and update, sometime it happens due to license validation with wpdm pro and your server firewall.

Hi,
Sorry for your inconvenience, please update to v1.0.3, it will work for private apps too now.

If, your are seeing the following error:

That means, zlibs is not working or not well configured in your server, you need to contact your server support.

Fixed and updated ( v5.6.1 ), it is okay now.

Hi,
At this moment, there is no such option with wpdm to filter unlinked files, however, it is noted for implementation.

also, it looks like, their private/folder specific app behaving weirdly.