Problem
A price has been accidentally deleted from the Pricing tab.
Possible cause
Deleted prices cannot be restored. The deletion is permanent unless the price had active memberships linked to it — in that case an error dialog would have prevented the deletion.
Solution
Create a new price using the Add/Change price button in the toolbar.
Check all status tabs to confirm the deletion actually went through.
If the problem persists, contact support and include details about:
Details about the deleted price.
When the deletion occurred.