If you encounter a "deadlock" error, you will need to reboot your computer.
Simply put, a deadlock is when the computational function of an operating system, i.e. Windows is held up by inaccessible data in a concurrent list of computations needed to complete a task.
As mentioned, a reboot of your computer is the recommended troubleshooting for a deadlock error, but contact support@quikstor.com for further assistance if you continue to experience issues.
For more detailed information please feel free to search online for articles such as this one from Wikipedia: https://en.wikipedia.org/wiki/Deadlock