Restoring deleted impact maps is easy and takes a few mouse clicks. There are two ways to restore a deleted impact map:
Restoring from the Tag page
Go to the page of the tag that contained the deleted impact map.
Open the DELETED tab.
Hit the RESTORE icon on the right of the impact map’s bar.
Restoring from the trash
Go to the Trash tag page and find the map you want to restore.
Hit the RESTORE icon on the right of the target impact map’s bar: