Error in Building OPNSense (libgcrypt does not exist)

[xenon-xenon]

Hi ,I just making a DVD image with make dvd command and in building process there is error about libgcrypt and it says : it seems that does not exist and after that it tries to fetch that from:
https://gnupy.org/.......
and the URL does not exist and building process freezes
what should I do ?

here is the image link for error and frozen page:
https://user-images.githubusercontent.com/61124903/102020322-c59cc200-3d8d-11eb-8605-4ec2f2726e58.png