CFBundleVersion Mismatch - The CFBundleVersion value does not match the CFBundleVersion value of its containing iOS application

I consider it an App Store bug, caused by StickerPackExtension targets version and build version differs from the Steampunk Junkies™ Sticker Pack application targets version:

To fix the error simply copy the version to make sure they are the same for both targets.

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Update:

If you can not see your targets, click this symbol:

Look under the Info tab to see if you have updated it there also.

You can change the build number and keep the same version number in order to archive it and submit to the app store.