i tried a "pod" for a few days ago.. not working anymore?

hello. just have to start off by saying that i have no clue how this work, i just followed a guide from youtube where he guided how to rent a 4090, then go to pods and search his username to try comfyui. it worked well first day. and when i was done using it for the day, i pressed stop ( i clicked stop cause i guess thats how to prevent it to charge money when im idle) -day after i wanted to try comfyui again, and i clicked "pods" and start.. but it never worked again.. is there something i did wrong? i guess i have to delete the whole pod and download it again?