Unable to delete some fields from custom posts

Hello,

I have four custom post types and all four have three fields that geodirectory wont allow me to delete. On my “add listing” page, there are 3 fields (“listing title”, “Listing description”, and “tag keywords”) that i want to delete, outlined in red in the attached screen shot titled “listing page”.

The fields “listing title”, “Listing description” are listed in the geodirectory>listing settings, but there is no way to delete them. In the screen shot labeled “listing settings”, i outlined the fields where you will see the delete button is grayed out (i labeled them “cant delete” for my own reference). For both fields, i set to inactive, not required, and deselected all of my custom listings, these still show up as active n my page. How do i delete these field options?

Lastly, how do i remove the “Tag Keywords” option in the listing?

Thank you
Alex