QtQML application crashes when loading a JavaScript file

1  __GI_raise                    raise.c            54   0x7ffff6056428 
2  __GI_abort                    abort.c            89   0x7ffff605802a 
3  qt_message_fatal              qlogging.cpp       1710 0x7ffff6a1cdc2 
4  QMessageLogger::fatal         qlogging.cpp       816  0x7ffff6a1daca 
5  qt_assert                     qglobal.cpp        3091 0x7ffff6a16bce 
6  QQmlTypeLoader::getType       qqmltypeloader.cpp 1628 0x7ffff71f374c 
7  QQmlComponentPrivate::loadUrl qqmlcomponent.cpp  660  0x7ffff71d20cf 
8  QQmlComponent::QQmlComponent  qqmlcomponent.cpp  524  0x7ffff71d2192 
9  QQmlComponent::QQmlComponent  qqmlcomponent.cpp  505  0x7ffff71d21a9 
10 QQuickViewPrivate::execute    qquickview.cpp     105  0x7ffff7be81ac 
11 QQuickView::setSource         qquickview.cpp     236  0x7ffff7be825b 
12 main                          Main.cc            8    0x400e18