Adding gravity to the THIRD PERSON MOVEMENT script

Dekupi

I've followed Brackeys 'third person movement' tutorial and it works fine , then I tired adding gravity to it following the 'First person movement' tutorial but it just won't work. There are no syntax errors and I've crossed checked if i made any spelling errors or so but ive found nothing.

I've attached the code below , Please help .

Thank you in advance

code.txt