My pkpass file not open in apple wallet

Unfortunately, a problem statement repeating (what is effectively) “it broke” won’t get to an answer very quickly, if at all, and might cause frustration when I ask something obvious and that you’ve already thought about and have checked.

So… apologies on asking what might be obvious questions.

Have you reviewed the contents and how the pkpass zip file is created, as a starting point:

… Wallet Passes | Apple Developer Documentation

… Building a Pass | Apple Developer Documentation

If the pkpass zip file is not sensitive, maybe this validator helps? :

… https://github.com/tomasmcguinness/pkpassvalidator/tree/master

… https://pkpassvalidator.azurewebsites.net/

If the data is sensitive, the source code to that verifier is available.