Install libnvidia-fbc1-390 by entering the following commands in the terminal:
sudo apt update sudo apt install libnvidia-fbc1-390
NVIDIA OpenGL-based Framebuffer Capture runtime library
The NVIDIA OpenGL-based Framebuffer Capture (NvFBCOpenGL) library provides a high performance, low latency interface to capture and optionally encode an OpenGL framebuffer. NvFBCOpenGL is a private API that is only available to approved partners for use in remote graphics scenarios. . This package contains the NvFBCOpenGL runtime library.