Proteus, 6bit x 6bit unsigned multiplexer

[Necromancer]

Hello, I need to make a seminar work, 6bit x 6bit unsigned multiplexer using only NOR gates.

Here's the link for the project I have made yet.
https://mega.nz/file/TDBimDqC#M0TSofQkm ... PuMKIH59Yg

The q10,q11 outputs are the ones that work only, the rest is not.
If anyone could help, I would appreciate it!

[Ettore]

It turns out that you were using a cracked Proteus copy - customer number was one from blacklist.
I hate to tell it but, unfortunately, we cannot and won't support anyone using a not legal copy of Proteus.
Please purchase your custom copy of Proteus here:
https://www.labcenter.com/pricing/