I cant understand why my point variable is a static context error

(Java) So I have 4 variables to my player class, I dont get why one of them(the double variable point) is causing an error, when my int, boolean and string values are not? I get that a static value is a general value adhering to a class vs. a non static method is instance specific., but dont get why that specifc variable is causing this error in this context(Also feel free to roast my code :D)