iOS development build crashes on start after some days

Hi I noticed that after I package the game as development build, it crashes after a X days (at least more than one week, don’t know the exact number of days).

I followed the iOS quickstart guide (https://docs.unrealengine.com/latest/INT/Platforms/iOS/QuickStart/8/index.html) and packaged and installed the game as described in step 8.

I’ve found out that by default the iOS provision lasts 7 days if you have free Apple developer account (IPhone app crashes after a few days | Apple Developer Forums) (ios - iPhone app under test crashes after a few days - Stack Overflow).

But I have a paid Apple developer account.

Can someone confirm that after some days (or precisely how many days), the app will stop functioning if it is packaged as development build.

Thanks
Z.

Could you attach a crash log?