Unreal stuck on verifying updates on mac os sierra

I have downloaded the installer (.dmg) file and run it, it downloaded the updates then it did stuck on verifying the updates. When I click on the icon back, it shows me that it crashed with the UE4 crash reporter.

I will attach the files of the crash reports

I’m running macOS Sierra Version 10.12.6 on a macbook pro late 2013.

Please help!!!link text