App crashes after successful signing on iOS 9.x

[foxnoodles]

Describe the bug
App crashes after successful signing on iOS 9.x. It sends a notification and everything is fine except the fact that the app has crashed.

To Reproduce
Steps to reproduce the behavior:

Just open RR and sign any app. it will sign it but crash right after.

Expected behavior
RR should just continue running normally.

Screenshots
If applicable, add screenshots to help explain your problem.

Device (please complete the following information):

• 9.0.2, 9.2, 9.3.5
• iPhone 4s, iPod touch 5

Additional context
Work fine on iOS 10.x and higher. If you need testing I have legacy devices running almost all versions of iOS.

(Please do not delete lines in bold)