Partnership filing (loss) + W2

This is my very first time filing taxes in the US. Basically, what kind of forms should I prepare for loss business together with my W2 form?

Background:I moved to the US early last year. And, I met 3 people from my local community, and decided to work on a food stall business with the 4 of us together in Feb 2024.First, we registered a multi-member LLC and obtained an EIN, and started preparing for the first stall opening for the next two months.We started operating the stall in April. During the first week, one of the members decided to leave and withdrew all his money.The rest of us continued running the business, but we didn't do well because of our inexperience.Daily sales didn't even cover the operating costs. And, at mid May, we decided to stop the business with a loss. I filed to deactivate the LLC, but the EIN is still there(I don't know how to cancel/decativate EIN). And, I started working my first W2 job in July, and continue to do so until now.

All the answers are appreciated. Thanks in advance.