Library not loaded (Dyld Message). Only on 32bits devices

Question

I've encountered a problem on iPhone 5C. My application crashes directly on the launch with this message :

Dyld Error Message:
Dyld Message: Library not loaded: @rpath/SharedFitback.framework/SharedFitback
  Referenced from: /var/containers/Bundle/Application/D5646575-C0E6-462C-8A4A-F445C52FDE91/Patient.app/Patient
  Reason: image not found
  Dyld Version: 390.7

I tried with an iPhone 5S, 6 et 6S and it works, but the problem appear when I try to run it on 4S, 5 and 5C devices.

Based on this tests, I imagine that the issue is linked to the architecture.

I knew this kind of issue, but never had it on just few models.

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Here is my configuration on my SharedFitback.plist

• Architectures

• Linking

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Here is my configuration on my Patient.app - General section

It sounds like SharedFitback is only compatible for 64bits devices.

Is anyone have an idea about this issue ?