I've built 3 of these. One a long time ago before I'd done many pedals, I've since built a dozen asst. First one works like a charm. Wonderful. #2 nothing. Power to the LED but NO sound, I mean not a peep. #3 nothing. Power to the LED but NO sound, I mean not a peep again.
Double check your switching?
Are you sure your ic's are good? There are fake CA3080's out there if you are using that version :icon_sad:
links to build docs? voltages? photos? welcome to posting?
Welcome to the forum!
As already mentioned, there are a few pieces of information you could give us that might help narrow down the problem. It looks like Aion has two different versions of the Aurora, one using a CA3080, and one using an LM13700. Which are you building?
https://aionfx.com/project/aurora-legacy/
https://aionfx.com/project/aurora-compressor-sustainer/
Once that is known, it would help to have pictures of your build, as well as follow the troubleshooting steps here:
https://aronnelson.com/diywiki/index.php?title=Debugging