Pangu iOS 9.3.3 jailbreak not working anymore!

Can anyone please help me out!!
All of a sudden my phone lost the pangu app certificate after a shutdown and the app is no longer works
I tried to re-install the app with Impactor 0.9.32 + NvwaStone 1.1
And the app is back to work after resigning the app certificate!! But when i open the app and start the jailbreak the phone goes off and on again without the jailbreak!
What should i do in this case without restoring??