lemur 5.3 crash on ipad 2 with ios 9.1 (13B143)

Hi every body, i'm experiencing a systematic crash of lemur on my ipad 2 since a few days.
i've tryed a lot of solutions without any positive result:
the app doesn't launch and disappear and trying to relaunch results for a few seconds on a blank screen.
first i've disinstalled the app and installed the app again with the same result.
second i've restaured my ipad 2 with itunes again with the same result.
last i reinitialized all the settings to the factory settings always with the same result.
I don't know what i can do now to make the app functional on the ipad 2, knowing that the same app is
functional on py ipad mini with IOS 9.1.
Anyone having an idea would be great, i don't want for the moment to reset all the ipad 2 and reinstall all the apps
as i don't know if this will resolve the problem.
Thank you for your help.

Its the same here since I did the latest update - a few minutes ago

iPad2 - iOS 7.1.2

same here...please fix it...

iPad 3 IOS 9.1

iOS 9.1, iPad4, iPhone5 ... the same. Crashes upon starting Lemur.

same here, iPad 3 v.8.4

Same problem, blank screen for 2 seconds, then jumps back to IOS screen. Please fix.

iPad 4 IOS 9.1

I see these are all 32-bit devices. In the Audiobus forum there was one with two 64-bit devices, and Lemur 5.3 does not crash there.

So it looks like 5.3 is not only optimised for 64-bit, it runs on 64-bit devices only.

i've emailed the staff and waiting for a response, hope they will find a solution.

I checked my iPhone 6 Plus (64 bit) and it is still working with the 5.3 update.