Problem to build for MacOs (11.6.2)

The code signature is left out, so it should open if you right click / open. Unknown origins need to be enabled in gate keeper.  What is the error?

The code signature is left out, so it should open if you right click / open. Unknown origins need to be enabled in gate keeper.  What is the error?

 Hello, thank you for your answer and sorry for the late reply. The user who test the app on their Mac just sent me this:

Have you unpacked the files on Windows? There is an attribute to the file that is destroyed by unpacking on file systems that don't have it. If not, you can send me the zip over and I'll see what's wrong with it.