Program crashing on exec()

Hello, I am having a program crash when it reaches the QApplication’s exec method. Here is the stacktrace from it. Program received signal SIGABRT, Aborted. 0x00007fff872ac212 in __pthread_kill () (gdb) bt #0  0x00007fff872ac212 in __pthread_kill () #1  0x00007fff8c1b4b54 in pthread_kill () #2  0x00007fff8c1f8dce in abort () #3  0x00007fff8c5d99eb in abort_message () #4  0x00007fff8c5d739a in default_terminate () #5  0x00007fff8a27d887 in _objc_terminate () #6  0x00007fff8c5d73c9 in safe_handler_caller () #7  0x00007fff8c5d7424 in std::terminate () #8  0x00007fff8c5d861b in __cxa_rethrow () #9  0x00007fff8a27d575 in objc_exception_rethrow () #10 0x00007fff86450146 in CFRunLoopRunSpecific () #11 0x00007fff8228beb4 in RunCurrentEventLoopInMode () #12 0x00007fff8228bc52 in ReceiveNextEventCommon () #13 0x00007fff8228bae3 in BlockUntilNextEventMatchingListInMode () #14 0x00007fff8a4da533 in _DPSNextEvent () #15 0x00007fff8a4d9df2 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] () #16 0x00007fff8a4d11a3 in -[NSApplication run] () #17 0x0000000102f1652b in QCocoaEventDispatcher::processEvents () #18 0x0000000100c88a33 in QEventLoop::exec () #19 0x0000000100c8bb25 in QCoreApplication::exec () #20 0x0000000100005f1f in main () I believe the problem lies with me using QNetworkAccessManager. I am creating many copies of this [github.com] class. Any help is appreciated.