Hi ,
Is this error happening for a specific file when you try to open it, or does it happen any time you try to open Twinmotion.
If it only happens for one file, then the problem is that the specific file uses too much VRAM for your computer and requires a stronger GPU to open. One possible workaround for this, since you don't have Graphics hardware support setting (this means your GPU does not support the DirectX Raytracing feature of DirectX 12 so Twinmotion already uses DirectX 11), is to lower the Quality Preset in the Preferences menu to Low. This should reduce the VRAM requirements on launch and might reduce it enough to open the file.
If this happens any time you try to launch Twinmotion, even a new file, then try following the steps in the Twinmotion is not visible after splash screen article. This will reset Twinmotion to a default configuration, which may help resolve the issue.
If neither of these solutions work, let me know and I can look into this further.
Best,
Raghib