uploading CSV file using ajax to function.php

Hi guys, I was wondering what is the problem of my code. I really wanted a response but I didnt receive any

https://preview.redd.it/eao00zvydzca1.png?width=1305&format=png&auto=webp&v=enabled&s=2829105ce38050aa2a227800ffb06773d8444985

https://preview.redd.it/sqflx9w0ezca1.png?width=1377&format=png&auto=webp&v=enabled&s=a5eb0f03778f1c98e6a17c5ed43b95275748e23b

 

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