Did you find any solution? I've seen the same error on iPhone SE 2nd generation.
MAIN THREAD - CRASHED
libobjc.A.dylib
objc_opt_respondsToSelector
ExternalAccessory - [EAAccessoryManager _notifyObserversThatAccessoryDisconnectedWithUserInfo:]
ExternalAccessory - [EAAccessoryManager _externalAccessoryDisconnected:]
CoreAccessories - [ACCExternalAccessoryProvider ExternalAccessoryLeft:]
libdispatch.dylib. _dispatch_call_block_and_release
libdispatch.dylib. _dispatch_client_callout