I get this when I run the game with love version 11.1 (it’s not the version you made the game with, but it’s the default version for my debian system)
Error
Shield.lua:10: Could not decode file ‘assets/sprites/shield.png’ to ImageData: unsupported file format
Traceback
[C]: in function ‘newImage’ Shield.lua:10: in main chunk [C]: in function ‘require’ Character.lua:8: in main chunk [C]: in function ‘require’ collision.lua:2: in main chunk [C]: in function ‘require’ main.lua:30: in main chunk [C]: in function ‘require’ [C]: in function ‘xpcall’ [C]: in function ‘xpcall’