OELogging isn’t on in that log, it only has verbosePocketsphinx output.
But a bigger issue is that the last iOS version which was supported by the iPhone 3G was iOS 4.2.1. OpenEars 2.5 supports iOS 7.1.1 through current versions and it hasn’t supported the 3G since version 1.5 if I recall correctly. You probably need to start your troubleshooting by looking at the issue that it seems like you are developing with the iOS 6 SDK on a device which doesn’t support iOS 6 or iOS 5. OpenEars specifically now requires the latest version of Xcode (at least 7.2) so make sure to upgrade when developing for a compatible device.