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: TPO792
name: 13/1986
tree-preservation-order: undefined
13/1986
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.656056 51.266906,0.656151 51.266906,0.656239 51.266923,0.656311 51.266959,0.656359 51.267003,0.656386 51.267053,0.656382 51.267083,0.656355 51.267128,0.656319 51.267152,0.656267 51.267170,0.656002 51.267215,0.655770 51.267227,0.655241 51.267236,0.654595 51.267181,0.654475 51.267188,0.654355 51.267214,0.653989 51.267328,0.653792 51.267345,0.653707 51.267337,0.653660 51.267299,0.653656 51.267266,0.653676 51.267242,0.653738 51.267197,0.654366 51.267021,0.654652 51.266956,0.654773 51.266940,0.654985 51.266934,0.655337 51.266967,0.655889 51.266927,0.656056 51.266906)))
point: POINT (0.655136 51.267103)
notes: Maidstone Borough Council Tree Preservation Order No 13 of 1986 under Section 60 of the Town and Country Planning Act 1971 Woodlands - W6 Comprising : deciduous Hawthorn and
organisation
entry-date: 1986-08-13
start-date: 1986-07-18
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.