According to your error log,
:Failed to open/create the internal network
'HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter #2'
(VERR_SUPDRV_COMPONENT_NOT_FOUND). Failed to attach the network LUN
(VERR_SUPDRV_COMPONENT_NOT_FOUND). Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap Interface: IConsole
{872da645-4a9b-1727-bee2-5585105b9eed}
Open "Network Connections" from control panel, select the "VirtualBox Host-Only Network" right click and check if "VirtualBox NDIS6 Bridged Networking Driver" is enabled from properties.
If the settings looks alright but the device doesn't starts, Uninstall both of the VirtualBox and Genymotion, reinstall a new package that contains both of the VirtualBox & Genymotion together in a single package. See here,
PS: Try restarting your PC making installing/uninstalling the VirtualBox.