Villager Wrong Location

Wrong location! (-26, -21) should be (-25, -21), avl['Villager'/8815, l='world', x=-400.50, y=154.69, z=-324.50]

Wrong location! (-26, -21) should be (-26, -20), avl['Villager'/8846, l='world', x=-402.50, y=154.69, z=-320.50]

Not sure what they mean