efst | Python Encrypted FS tools

I am a student conducting a gene expression survival analysis in R. I have the expression data for 249 patients, and I am using 6,000 genes as well as their event-free survival times and vital state as response variables. When I tried to run the Cox regression on my dataset, I got extremely strange results (p-values of 0.00 and strange hazard ratios). I have checked over my code multiple times, but I am not able to catch my mistake (when I tried earlier with just one gene, it worked fine, but when I try to test multiple genes using the '.' function, I am not getting porper results). I would highly appreciate any help and have attached both my code and output! Let me know if more information is needed.