Tree preservation zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: TPO674
name: 19/1984
tree-preservation-order: undefined
19/1984
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.603808 51.282006,0.604129 51.281962,0.604227 51.282084,0.604328 51.282193,0.604841 51.282951,0.604964 51.283114,0.605112 51.283288,0.605181 51.283404,0.605336 51.283621,0.605377 51.283706,0.605456 51.283776,0.605560 51.283952,0.605680 51.284107,0.605446 51.284206,0.605293 51.283994,0.605092 51.283771,0.604997 51.283620,0.604896 51.283484,0.604811 51.283393,0.604636 51.283122,0.604450 51.282883,0.604207 51.282538,0.604053 51.282348,0.603950 51.282163,0.603855 51.282066,0.603808 51.282006)))
point: POINT (0.604748 51.283045)
notes: Maidstone Borough Council Tree Preservation Order No 19 of 1984 made under Section 60 of the Town and Country Planning Act 1971 Woodlands - W1 comprising species Turkey Oak,
organisation
entry-date: 1984-09-06
start-date: 1984-08-28
end-date

Your dataset is missing the tree-preservation-order column.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.