I'm trying to develop a plugin which uses custom post and custom database table with class that extends the wp_list_table to show the data from a database table. But everytime I try to do something with the record it just gives me an error that I don't have sufficient permissions. I'm trying to do the rollover edit and delete and bulk action delete and also the search box. But when I click on the button it always gives me this error and I don't know why. Any suggestions?