The error means Lumion is unable to initialize a basic Direct3D 9 (D3D9) interface, which it uses to verify graphics capabilities. This can happen due to: . Missing DirectX Runtimes .

Download and install the DirectX End-User Runtime Web Installer from Microsoft to replace any missing D3D9 files. 4. Adjust System Resolution and Windows Mode

: Right-click the desktop > NVIDIA Control Panel > Manage 3D Settings > Program Settings. Add Lumion and set it to High-performance NVIDIA processor .