Error de Google AdMob después de actualizar a Xcode 11 Swift 5.1

Como actualicé a Xcode 11, los anuncios intersticiales en mi aplicación ya no se cargarán. (Antes de eso, todo funcionó bien. La aplicación incluso se lanzó en la App Store. Ahora estamos creando una versión actualizada de la aplicación)

Instalé el SDK de Google AdMobs a través de Cocoapods y actualicé esto a la última versión. Todavía no hay éxito. (Seguí todos los pasos del tutorial de Google, cómo implementar anuncios intersticiales) Estos son los mensajes de error que recibo de la consola:

    2019-10-10 21:42:35.543249+0100 BuszZer[76592:876619] <Google> To get test ads on this device, set: request.testDevices = @[ kGADSimulatorID ];
    2019-10-10 21:42:35.599222+0100 BuszZer[76592:876796] [Client] Updating selectors failed with: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.599426+0100 BuszZer[76592:876796] [Client] Updating selectors after delegate addition failed with: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.599610+0100 BuszZer[76592:876787] [Client] Synchronous remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.600170+0100 BuszZer[76592:876787] [Client] Synchronous remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.600215+0100 BuszZer[76592:876796] [Client] Updating selectors failed with: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.601185+0100 BuszZer[76592:876787] [Client] Synchronous remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.601435+0100 BuszZer[76592:876796] [Client] Updating selectors failed with: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpc was invalidated.}
    2019-10-10 21:42:35.608414+0100 BuszZer[76592:876619] [plugin] AddInstanceForFactory: No factory registered for id <CFUUID 0x60000360a1a0> F8BB1C28-BAE8-11D6-9C31-00039315CD46
    2019-10-10 21:42:35.610662+0100 BuszZer[76592:876789]  - <Google>[I-ACS025031] AdMob App ID changed. Original, new: (nil), ca-app-pub-9056820091768756~5451481231
    2019-10-10 21:42:35.611337+0100 BuszZer[76592:876789]  - <Google>[I-ACS023007] Analytics v.60102000 started
    2019-10-10 21:42:35.611517+0100 BuszZer[76592:876789]  - <Google>[I-ACS023008] To enable debug logging set the following application argument: -APMAnalyticsDebugEnabled (see https://help.apple.com/xcode/mac/8.0/#/dev3ec8a1cb4)

¿Alguien tiene problemas o experiencias similares y sabe cómo resolverlos? Cualquier ayuda es apreciada. ¡Muchas gracias!

Intente ejecutar este comando en una terminal:

xcrun simctl spawn booted log config \
   --mode "level:off" \
   --subsystem com.apple.CoreTelephony