CUDA issue after a few hours

Hello there,
Fairly new to the community and would like some help. I don´t know if this is a known issue or not and its making me kind of crazy.

So I have been building my streamlit app for a couple of days on the upgraded CPU server and finally decided to start running it on GPU.

First of all, the T4 takes a lot longer to build on? Second of all, initially CUDA was running flawlessly but after a couple of hours and when my friend joined in to try it out, CUDA wasn’t available anymore?

I tried rebooting the space and everything but the issue persist.

Any ideas?