Expected Behavior
When a default status is set for the feedback board and this status is subsequently deleted from the list of available statuses, the default status setting should reset to "All." Consequently, the feedback page should display all posts.

Current Behavior
If a default status is set for the feedback board and that status is deleted from the list of available statuses, the default status field becomes blank, causing the feedback page to fail to load any posts.

Possible Solution
Automatically reset the default status to "All" if the currently selected status is deleted.

Steps to Reproduce

1. Change the default status option via Sleekplan settings.
2. Delete the selected status.
3. Check the public feedback page and observe that it displays an empty list.