How do I fix an animation looping problem

so I have been having this issue for a while I am creating a game for a competition in my college but this loop animation is killing me when I walk to the left or right it just continues like forever.

https://mega.nz/#!UQZmWZbL

that is my capx file would really love some help here

Hey Jonny,

Your file says it needs to have a key to be decrypted.