If it is with Toolset Types plugin, you can check these:
Dashboard-> Toolset-> Post Types, find and edit the specific custom post type, if you can not find it, you can recreate them again
A user reported that the "cred-delete-relationship" shortcode is not working inside one of the views.
Solution:
Guided that, in the "cred-delete-relationship" shortcode, the "role_items" attribute works in a view where a relationship filter is being used.
Since the view in question is not using any relationship filter, you'll need to replace the "role_items" attribute with the "related_item_one" and "related_item_two" attributes.
Problem:
Saving custom post type throws Error:
You cannot use this slug because it is already used or a reserved word. Please choose a different slug.
Solution:
As the error reads, you must have created either any post, page, content template or view any any other entity with the slug "tablet-application" or it's a reserved slug.
WordPress do not allow duplicate slugs and slugs should be unique. Can you please try to find where you are using the slug tablet-application" and then rename that slug and then it will allow you to create entity with your desired slug.
