Summary: Application Verification Failure error, which is usually caused by misconfigured code signing.

Solution: Make sure you are performing all these checks:

  1. If the developer provisioning profiles has all test devices added.

  2. Updated developer provisioning profile is uploaded to quark Appstudio portal.

  3. Re-buiild app and then download test app on test devices only.

  4. Test device has sufficient storage space available.

Please Refer: