Hello. Go to Steam\steamapps\common\FaceRig\Bin and launch FaceRig.exe with administrator rights. An error code should be returned. Let me know what that error code is saying.

Here's the error log:

STACK DUMP saved in
D:\Programme (x86)\Steam\steamapps\common\FaceRig\Bin\FaceRig_stack_2020-12-03_18-05-13.dmp

EXCEPTION: Access violation while 'writting to' address 0x3a001e4c at address 0x3a001e4c
SegGs=0x2b SegFs=0x53 SegEs=0x2b SegDs=0x2b
Edi=0x721e65a7 Esi=0x7ebb718 Ebx=0x4
Edx=0x72184840 Ecx=0x3 Eax=0x721e65a0
Ebp=0x12fb1a0 Eip=0x3a001e4c SegCs=0x23
EFlags=0x10202 Esp=0x12fb154 SegSs=0x2b
Dr0=0x0 Dr1=0x0 Dr2=0x0
Dr3=0x0 Dr7=0x0 Dr7=0x0


SymInit: Symbol-SearchPath: 'D:\PROGRAMME (X86)\STEAM\STEAMAPPS\COMMON\FACERIG\BIN\;.;D:\Programme (x86)\Steam\steamapps\common\FaceRig;D:\Programme (x86)\Steam\steamapps\common\FaceRig\Bin;C:\WINDOWS;C:\WINDOWS\system32;', symOptions: 210, UserName: 'Red_Fox_Spy'
DbgHelpPath: 'C:\WINDOWS\SYSTEM32\DbgHelp.dll'
DbgHelpVersion: '6.2.0'
OS-Version: 6.2.9200 () 0x100-0x1

---CallStack---
3A001E4C ((module-name not available)): (filename not available): (function-name not available)
080B8C45 (RTSSHooks): (filename not available): (function-name not available)
61C38982 (gameoverlayrenderer): (filename not available): OverlayHookD3D3
61C38BED (gameoverlayrenderer): (filename not available): OverlayHookD3D3
70AB3A8D (d3d11): (filename not available): EnableFeatureLevelUpgrade
5DDF4C2A (EngineDll10): (filename not available): public: int __thiscall cRenderDX11::CreateDevice(struct HWND__ *,struct tRenderParam const &)
5DDFB3E4 (EngineDll10): (filename not available): public: virtual int __thiscall cRenderDX11::Init(struct HWND__ *,struct tRenderParam const &)
5DE91B64 (EngineDll10): (filename not available): protected: int __thiscall cRenderInterface::CreateRender(struct HWND__ *,int,struct tRenderParam &)
5DE9309F (EngineDll10): (filename not available): public: int __thiscall cRenderInterface::CreateRender(struct HWND__ *,struct tRenderCfg &)
5DE93132 (EngineDll10): (filename not available): public: int __thiscall cRenderInterface::CreateRender(struct HWND__ *)
0022FE84 (FaceRig): (filename not available): (function-name not available)
0012FA0B (FaceRig): (filename not available): (function-name not available)
0011E587 (FaceRig): (filename not available): (function-name not available)
002A9B62 (FaceRig): (filename not available): (function-name not available)
7559FA29 (KERNEL32): (filename not available): BaseThreadInitThunk
777275F4 (ntdll): (filename not available): RtlGetAppContainerNamedObjectPath
777275C4 (ntdll): (filename not available): RtlGetAppContainerNamedObjectPath

I also coudnt start facerig with the same message