iOS app does not start after adding the IPA from XCode -> Devices

Hello,

I have received an IPA, which I have resigned with a company certificate and tried to test it on my device. After uploading the resigned IPA I try to start the app with no success - it closes immediately after starting it.

This is what I found in the logs (changed the bundle ID to com.example.app):

Aug  9 18:15:37 Developers-iPhone SpringBoard[53] <Notice>: Running <SBAppToAppWorkspaceTransaction: 0x14bd2a090> for transition request:
<SBMainWorkspaceTransitionRequest: 0x170aefe00; eventLabel: ActivateApplication = com.example.app; display: Main; source: HomeScreen> {
    applicationContext = <SBWorkspaceApplicationTransitionContext: 0x1708c6120; background: NO> entities = {
        SBLayoutPrimaryRole = <SBWorkspaceApplication: 0x170882670; ID: com.example.app; layoutRole: primary>;
    };
}
Aug  9 18:15:37 Developers-iPhone assertiond[63] <Notice>: Submitted job with label: UIKitApplication:com.example.app[0x966b][63]
Aug  9 18:15:37 Developers-iPhone assertiond(BaseBoard)[63] <Error>: Unable to obtain a task name port right for pid 907: (os/kern) failure (0x5)
Aug  9 18:15:37 Developers-iPhone assertiond[63] <Notice>: Failed to start job with error Error Domain=NSPOSIXErrorDomain Code=3 "No such process" UserInfo={NSLocalizedRecoverySuggestion=Consult /var/log/com.apple.xpc.launchd/launchd.log for more information, NSLocalizedDescription=Unable to get valid task name port right for pid 907, NSLocalizedFailureReason=The process failed to exec}
Aug  9 18:15:37 Developers-iPhone assertiond[63] <Notice>: Deleted job with label: UIKitApplication:com.example.app[0x966b][63]
Aug  9 18:15:37 Developers-iPhone SpringBoard(AssertionServices)[53] <Notice>: [com.example.app] Bootstrap failed with error: <NSError: 0x1712409c0; domain: BKSProcessErrorDomain; code: 1 (bootstrap-failed); reason: "Failed to start job">
Aug  9 18:15:37 Developers-iPhone SpringBoard(FrontBoard)[53] <Error>: Bootstrapping failed for <FBApplicationProcess: 0x14d261100; com.example.app; pid: -1> with error: Error Domain=BKSProcessErrorDomain Code=1 "Unable to bootstrap process with bundleID com.example.app" UserInfo={BKSProcessExitReason=0, NSLocalizedFailureReason=Failed to start job, NSUnderlyingError=0x171441860 {Error Domain=NSPOSIXErrorDomain Code=3 "No such process" UserInfo={NSLocalizedFailureReason=The process failed to exec, NSLocalizedRecoverySuggestion=Consult /var/log/com.apple.xpc.launchd/launchd.log for more information, NSLocalizedDescription=Unable to get valid task name port right for pid 907}}, BSErrorCodeDescription=bootstrap-failed, NSLocalizedDescription=Unable to bootstrap process with bundleID com.example.app}
Aug  9 18:15:37 Developers-iPhone SpringBoard(FrontBoard)[53] <Notice>: <FBApplicationProcess: 0x14d261100; com.example.app; pid: -1> exited.
Aug  9 18:15:37 Developers-iPhone SpringBoard[53] <Notice>: Disabling home screen icon rotation for reason: SBAppToAppWorkspaceTransaction
Aug  9 18:15:37 Developers-iPhone sharingd[57] <Notice>: SystemUI unknown identifier: 'com.example.app'
Aug  9 18:15:37 Developers-iPhone CommCenter[74] <Notice>: #I CSIAppInfo.AppObserver: observe_block_invoke: FBSDisplayLayoutUpdateHandler: update start
Aug  9 18:15:37 Developers-iPhone sharingd[57] <Notice>: SystemUI changed: 0x10 -> 0x0
Aug  9 18:15:37 Developers-iPhone SpringBoard[53] <Notice>: Disabling home screen icon rotation for reason: <SBCrossfadeIconZoomAnimator:0x14d36dc00>
Aug  9 18:15:37 Developers-iPhone CommCenter[74] <Notice>: #I CSIAppInfo.AppObserver: observe_block_invoke: FBSDisplayLayoutUpdateHandler: app <private> (UIApplicationElement 1 hasKeyboardFocus 0)
Aug  9 18:15:37 Developers-iPhone SpringBoard(MobileCoreServices)[53] <Notice>: Looking up unclipped icon for app <private>
Aug  9 18:15:37 Developers-iPhone SpringBoard[53] <Notice>: Dismissing banner for notification (null)
Aug  9 18:15:37 Developers-iPhone SpringBoard(CoreMotion)[53] <Notice>: Stopping device motion, mode=0x<private>
Aug  9 18:15:37 Developers-iPhone SpringBoard[53] <Notice>: Process exited: <FBApplicationProcess: 0x14d261100; com.example.app; pid: -1> -> <FBApplicationProcessExitContext: 0x174231aa0; exitReason: (none); terminationReason: (none)>

Any ideas what the cause of this error might be? Thanks a lot in advance!