hey! i think that maybe try brainstorming a little more? i mean- we still have 8 weeks so that’s still a lot of time to think about your story!! but also- no one is just going to give a story idea to you, your the author and you need to think of these kind of things yourself, if you still can’t think of anything, maybe this just isn’t for you. but i’m pretty sure someone already gave you a risk to take, and THEN on top of that your asking for a reward too- which is basically asking other people to write and plan the whole story for you, and you just code it 
JUST my opinion- not trying to be rude at all, just try thinking it through a little bit more? its okay to be stumped but its NOT okay to ask others to plan your whole plot out for you :((