An archived board can easily be restored. Follow the steps below:
Go to Settings by clicking the gear icon in the top right corner.
Click Boards.
At the top of the planning boards page, enable the Archived toggle.
The archived board should now appear in the list.Click the name of the board to open it.
In the top right corner, you will see three dots. Click them to open the action menu.
In this menu, click Unarchive. Your board will immediately become active again.
The board is now visible again. Click the home icon at the bottom of the left menu bar in vPlan to return to your planning.