theefarmer

If you are using the ‘capability_type’ parameter make sure you have the type specified. If you are using a capabilities array parameter then make sure you add ‘delete_posts’ with the appropriate user permission. Although you can use both the ‘capability_type’ and ‘capabilities’ together, Codex specifies that if you are using the capabilities array parameter to set the capability_type to an empty string to avoid it making interferences with others capabilities.

Try something like this:

'capability_type'     => 'post'

or

'capability_type'     => ''
'capabilities'        => array(
	'edit_post'          => 'edit_pages',
	'read_post'          => 'edit_pages',
	'delete_post'        => 'edit_pages',

        'delete_posts'       => 'edit_pages',

        'edit_posts'         => 'edit_pages',
	'edit_others_posts'  => 'edit_pages',
	'publish_posts'      => 'edit_pages',
	'read_private_posts' => 'edit_pages'
),

Where ‘delete_posts’ can be done by a user who is allowed to ‘edit_pages’. You can change ‘edit_pages’ to a more appropriate permission. You can also read more about roles and capabilities at https://codex.www.ads-software.com/Roles_and_Capabilities.

Hope it helps.

Add ‘delete_posts’ not just ‘delete_post’ to the custom post type capabilities array.

See also https://codex.www.ads-software.com/Function_Reference/register_post_type#Arguments for a list of capabilities.