Crash after applicationDidEnterBackground()

Hi - my app will sometimes crash rather than restart when resuming ( having been paused by the home button ) if I have other apps open and therefore ( I assume) there is not enough memory and I get a sigabrt error.
Is there any way to avoid this problem and will it mean my app gets rejected should I submit it?

TIA

Do the apps crash only when launched via Xcode? If that’s the case you might be just hitting known Xcode issue and it won’t affect your submission results.