Anyway to stop 4.15.3 from crashing every 5-10 minutes?

We’re currently working on a project and it continues to crash every 5-10 minutes. We’ve double checked all of our custom models, levels, etc… What can I do to fix this issue? I’m ready to through my laptop out the window. Here’s what the crash report continues to state:

Fatal error: [File:D:\Build++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp] [Line: 796]
Rendering thread exception:
Fatal error: [File:D:\Build++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 181]
Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - ‘HUNG’)

UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349]
UE4Editor_D3D11RHI!TerminateOnDeviceRemoved() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:191]
UE4Editor_D3D11RHI!VerifyD3D11Result() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:230]
UE4Editor_D3D11RHI!FD3D11Viewport::PresentChecked() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:289]
UE4Editor_D3D11RHI!FD3D11Viewport::Present() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:472]
UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHIEndDrawingViewport() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:591]
UE4Editor_RHI!FRHICommandList::EndDrawingViewport() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\rhi\private\rhicommandlist.cpp:1360]
UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindow_RenderThread() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:847]
UE4Editor_SlateRHIRenderer!TGraphTask