Visualizador de Câmaras IP de Protocolo ONVIF

Pessoal,instalei o programa onvifviewer via flatpak no meu Laptop Inspiron 1545 rodando a versão mais atualizada do Debian Strech. O Comando que eu uso éo seguinte:

flatpak run net.meijn.onvifviewer

daí eu recebo a seguinte mensagem de erro:

Empty filename passed to function
QObject::connect: invalid null parameter
qml: Warning: ApplicationHeader is deprecated, remove and use the automatic internal toolbar instead.
"void OnvifDeviceConnection::getServicesError(const KDSoapMessage&): Fault 301: Protocol \"\" is unknown"

Daí se no comando eu adiciono o modelo da Câmara: IP607W o erro retornado passa ser só o seguinte:

Empty filename passed to function
QObject::connect: invalid null parameter
qml: Warning: ApplicationHeader is deprecated, remove and use the automatic internal toolbar instead.
QQmlExpression: Expression qrc:/DeviceViewerPage.qml:28:22 depends on non-NOTIFYable properties:
OnvifDevice::isPanTiltSupported
OnvifDevice::isZoomSupported
"0 instead of 1 arguments to message {Ocorreu um erro dura...} supplied before conversion."
QQmlExpression: Expression qrc:/DeviceViewerPage.qml:113:26 depends on non-NOTIFYable properties:
OnvifDevice::isZoomSupported
QQmlExpression: Expression qrc:/DeviceViewerPage.qml:79:30 depends on non-NOTIFYable properties:
OnvifDevice::isPtzHomeSupported
QQmlExpression: Expression qrc:/DeviceViewerPage.qml:53:26 depends on non-NOTIFYable properties:
OnvifDevice::isPanTiltSupported
"void OnvifDeviceConnection::getServicesError(const KDSoapMessage&): Fault 301: Protocol \"\" is unknown"
"vo

Será que alguém poderia me ajudar?