You shouldn't ask in both Discord and the forum at the same time, duplicating messages will just make people waste time trying to help you.
I'll copy paste the same answer for future reference but you already got all the solutions
How to fix GPUDriverD3D11 errors?
Update your GPU drivers https://www.howtogeek.com/135976/how-to-update-your-graphics-drivers-for-maximum-gaming-performance/ Install Direct X (even if it's already installed) https://www.microsoft.com/en-us/download/details.aspx?id=35Now restart your PC and try to start the launcher/your game again.
If the issue persists then your PC probably doesn't have a Direct X 11 capable GPU but there is a way to bypass that.
Download and run DXCpl.exe https://drive.google.com/file/d/1qvWbHrnBVVibYozaO9peXcSS9ovEBMhd/view Click "Edit List..." Click the three dots right of the "enter a process or folder name" field and select "plutonium-launcher-win32.exe" located in C:\Users\Username\AppData\Local\Plutonium\bin (Username is your Windows username) Tick the "force warp" checkbox and select "11_0" from the "feature level limit" dropdown menu Hit OK & try to start the launcher/your game again.