I M Trying To Delete Something From Database But My Work Is Not Working

Can someone help me I’ve been trying to fix this for many hours now. I’m trying to delete something from database but my work is not working.

I changed my username and password to “-” so i dont share my account.

Here’s what my page look like right now:

Admin.php

Id

Category Name

Delete

Place this order or similar order and get an amazing discount. USE Discount code “GET20” for 20% discount