CFNetwork crash

Thread 8 name: com.apple.CFNetwork.CustomProtocols 1 libobjc.A.dylib _objc_opt_respondsToSelector (in libobjc.A.dylib) 2 CoreFoundation __inputStreamCallbackFunc (in CoreFoundation) 3 CoreFoundation __signalEventSync (in CoreFoundation) 4 CoreFoundation __cfstream_shared_signalEventSync (in CoreFoundation) 5 CoreFoundation _CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION (in CoreFoundation) 6 CoreFoundation ___CFRunLoopDoSource0 (in CoreFoundation) 7 CoreFoundation ___CFRunLoopDoSources0 (in CoreFoundation) 8 CoreFoundation ___CFRunLoopRun (in CoreFoundation) 9 CoreFoundation _CFRunLoopRunSpecific (in CoreFoundation) 10 CFNetwork _estimatedPropertyListSize (in CFNetwork) 11 Foundation _NSThread__start (in Foundation) 12 libsystem_pthread.dylib __pthread_start (in libsystem_pthread.dylib) 13 libsystem_pthread.dylib _thread_start (in libsystem_pthread.dylib)