Villagers Pathfinding issue on beds and Workstations

One of my existing village got a problem on how the villagers can find their workstation. Resulting for them not to work. I tried to reset the village by removing bell, beds and workstation and putting them back one by one, to see if villagers link. Yes some of them link to the Workstations but can't find the way to it, they just roam around the village.