[Solved] I can't find out why my code doesn't work could you help me?

Question

So I made this https://code.sololearn.com/WoX07wFxkb71/#js code and it comes up with the error Uncaught TypeError: Cannot read property 'css' of undefined (Look in code) Could you give me a suggestion on what to do or tell me whats wrong

Answer 1

OLDNT I have succesfully fixed it the problem was that $player was given a value locally and another problem but I have fixed it thank you for the help!