Once you have access to the Rotted Beehive, you can repair it using 20 Durable Lumber and 50 Tough Grass.
You’ll need to have Nigel remove this debris before you can access this area of your farm. Both of these structures are found near the natural incline on your farm that’s covered with debris. The Rotted Beehive can be found near the ruined stable. One of these structures is a Rotted Beehive, which you can repair to start the process of making honey.
As you explore your farm in Story of Seasons: Pioneers of Olive Town, you’ll come across a few rundown structures that you can repair once you collect the required materials.