Grader error W4 assignment

The grader encounters errors testing my solution. I have passed all the provided tests. Here is the nbgrader output:
[ValidateApp | INFO] Validating ‘/home/jovyan/work/submitted/courseraLearner/W4_Assignment/C1W4_Assignment.ipynb’
[ValidateApp | INFO] Executing notebook with kernel: python3
2023-05-22 21:08:54.695317: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library ‘libnvinfer.so.6’; dlerror: libnvinfer.so.6: cannot open shared object file: No such file or directory
2023-05-22 21:08:54.695592: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library ‘libnvinfer_plugin.so.6’; dlerror: libnvinfer_plugin.so.6: cannot open shared object file: No such file or directory
2023-05-22 21:08:54.695608: W tensorflow/compiler/tf2tensorrt/utils/py_utils.cc:30] Cannot dlopen some TensorRT libraries. If you would like to use Nvidia GPU with TensorRT, please make sure the missing libraries mentioned above are installed properly.
2023-05-22 21:08:56.049683: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library ‘libcuda.so.1’; dlerror: libcuda.so.1: cannot open shared object file: No such file or directory
2023-05-22 21:08:56.049720: E tensorflow/stream_executor/cuda/cuda_driver.cc:351] failed call to cuInit: UNKNOWN ERROR (303)
2023-05-22 21:08:56.049759: I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:156] kernel driver does not appear to be running on this host (ip-10-2-120-213.ec2.internal): /proc/driver/nvidia/version does not exist
2023-05-22 21:08:56.049970: I tensorflow/core/platform/cpu_feature_guard.cc:142] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 AVX512F FMA
2023-05-22 21:08:56.075567: I tensorflow/core/platform/profile_utils/cpu_utils.cc:94] CPU Frequency: 2999990000 Hz
2023-05-22 21:08:56.077571: I tensorflow/compiler/xla/service/service.cc:168] XLA service 0x564f240d9990 initialized for platform Host (this does not guarantee that XLA will be used). Devices:
2023-05-22 21:08:56.077609: I tensorflow/compiler/xla/service/service.cc:176] StreamExecutor device (0): Host, Default Version
[ValidateApp | ERROR] Timeout waiting for execute reply (30s).
[ValidateApp | ERROR] Interrupting kernel
Success! Your notebook passes all the tests.
The grading problem section from the Report Issue popup is not functional either for me. Please help. Thank you!

Hi @Toma_Lungoci

Some students had problems with the grader in this assignment, you can see in this post:
https://community.deeplearning.ai/t/c1-w4-assignment-grading-failed-error/304866

And they solved just restarting the notebook.

Hope it will be your case, and you can solve just reestarting.
Pere.