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: TPO761
name: 1/1992
tree-preservation-order: undefined
1/1992
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.605785 51.310077,0.605869 51.310092,0.605986 51.310214,0.606033 51.310289,0.606092 51.310426,0.606205 51.310553,0.606255 51.310666,0.606374 51.310792,0.606505 51.310972,0.606555 51.311067,0.606589 51.311101,0.606624 51.311155,0.606634 51.311192,0.606627 51.311219,0.606612 51.311238,0.606593 51.311246,0.606524 51.311245,0.606448 51.311215,0.606387 51.311170,0.606301 51.311087,0.606223 51.310964,0.606054 51.310757,0.605962 51.310580,0.605879 51.310455,0.605743 51.310202,0.605708 51.310122,0.605717 51.310105,0.605740 51.310088,0.605785 51.310077)))
point: POINT (0.606163 51.31068)
notes: The Maidstone Borough Council Tree Preservation Order No 1 of 1992 under Section 198 of the Town and Country Planning Act 1990 Woodlands - W4 consisting mainly Hawthorn, Oak,
organisation
entry-date: 1992-02-10
start-date: 1992-02-07
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.