Problem downloading

[ms504713]

When I attempt to download the application zip file, I receive the following message: "Forbidden - You don't have permission to access /cgi-bin/bfxdownloader.pl?file=bfx64.xll on this server." I am using a Win 10 computer.  I have tried to download using Edge, IE, Chrome and Firefox all with the ame result.  Anyone have a suggestion as to how I can remedy this problem?

[admin]

try again?

[gvp]

"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster@bfxyz.nl to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log."

While i try to download anything ... can you fix it ?
Thank you.

ps
for example
https://www.bfxyz.nl/cgi-bin/bfxdownloader.pl?file=bfx64.xll