✅ Could not find file

I am a beginner doing a tiny project , we were placed in groups of 2 , i finished my part of the code , placed it in a zip and sent it to my colleague to finish the rest , then he said he got this error , i said alright let me enter my code and see what's wrong , now i get this error as well. literally did not change a thing,

i tried with help of gemini and it just drove me into a rabbit hole