Googled it and found this at top of the list. Hope it helps, however there are lots more to go through if you look.
"The function m_submitFencePlat->GetCompletedValue is a DirectX function that is failing, usually resulting in a DXGI_ERROR_DEVICE_REMOVED or DXGI_ERROR_DEVICE_HUNG error. This indicates that the graphics card has lost its connection with the system, often caused by a faulty or outdated graphics driver, but can also be a result of other software conflicts or hardware issues. To fix it, update your graphics drivers, ensure your operating system is up to date, and check for other software conflicts."
