From a quick search, I'm not sure this has been reported. Chrome started blocking mixed-content downloads silently sometime in the last few versions.
I believe the fix would be to get an SSL certificate for the subdomain gypoi.animemusicvideos.org, and serve downloads over HTTPS.Mixed Content: The site at 'https://www.animemusicvideos.org/' was loaded over a secure connection, but the file at 'http://gyopi.animemusicvideos.org/pancake/dl/...avi' was redirected through an insecure connection. This file should be served over HTTPS. This download has been blocked. See https://blog.chromium.org/2020/02/prote ... ecure.html for more details.
For a workaround, Chrome will tell you the file URL in the dev console (Ctrl/Cmd+Shift+J). You can right click and save from there.
Apologies if this was known already. Thank you for the amazing resource, glad to have made my first donation this morning.