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: TPO655
name: 5/1983
tree-preservation-order: undefined
5/1983
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.620530 51.275431,0.620565 51.275436,0.620587 51.275448,0.620658 51.275517,0.620713 51.275627,0.620824 51.275792,0.620850 51.275870,0.620857 51.275940,0.620932 51.276105,0.620975 51.276255,0.620979 51.276284,0.620970 51.276303,0.620949 51.276318,0.620899 51.276326,0.620857 51.276292,0.620834 51.276251,0.620723 51.275955,0.620588 51.275689,0.620539 51.275609,0.620459 51.275513,0.620445 51.275485,0.620469 51.275444,0.620530 51.275431)))
point: POINT (0.620739 51.275856)
notes: Maidstone Borough Council Tree Preservation Order No 5 of 1983 as varied by the Maidstone Borough Council Tree Preservation Order No.17 of 1988 made under Section 60 of the Town and Country Planning Act 1971
organisation
entry-date: 1988-11-05
start-date: 1988-11-06
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.