'nvidia-smi gives an error inside of a docker container

Sometimes I can't communicate with my Nvidia GPUs inside a docker container when I came back to my workplace from home, even though the previously launched process that utilizes GPUs is running well. The running process (training a neural network via Pytorch) is not affected by the disconnection but I cannot launch a new process.
nvidia-smi gives Failed to initialize NVML: Unknown Error and torch.cuda.is_available() returns False likewise.
I met two different cases:
1. nvidia-smi works fine when it is done at the host machine. In this case, the situation can be solved by restarting the docker container via docker stop $MYCONTAINER followed by docker start $MYCONTAINER at the host machine.
1. nvidia-smi doesn't work at the host machine nor nvcc --version, throwing Failed to initialize NVML: Driver/library version mismatch and Command 'nvcc' not found, but can be installed with: sudo apt install nvidia-cuda-toolkit error. Strange point is that the current process still runs well. In this case, installing the driver again or rebooting the machine solves the problem.
However, these solutions require stopping all current processes. It would be unavailable when I should not stop the current process.

Does somebody has suggestion for solving this situation?

Many thanks.

(sofwares)

(hardwares)

(pic1) nvidia-smi not working inside of a docker container, but worked well on the host machine.
(pic2) nvidia-smi works after restarting a docker container, which is the case 1 I mentioned above