Problem whenever trying to start Virtual Operating System

[Yeah Toast !]

Failed to open a session for the virtual machine OperatingSystem.

The virtual machine 'OperatingSystem' has terminated unexpectedly during startup with exit code 1 (0x1). More details may be available in 'C:\Users\Max Mitchell\VirtualBox VMs\OperatingSystem\Logs\VBoxStartup.log'.

Result Code: E_FAIL (0x80004005)
Component: Machine
Interface: IMachine {480cf695-2d8d-4256-9c7c-cce4184fa048}

I will post the log soon by download.