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: TPO573
name: 2/1983
tree-preservation-order: undefined
2/1983
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.625100 51.279735,0.625145 51.279742,0.625213 51.279773,0.625497 51.280000,0.625579 51.280051,0.625646 51.280106,0.625828 51.280297,0.626101 51.280514,0.626299 51.280698,0.626379 51.280786,0.626471 51.280906,0.626500 51.280950,0.626501 51.280979,0.626474 51.281006,0.626419 51.281016,0.626368 51.281006,0.626318 51.280972,0.626215 51.280847,0.626199 51.280796,0.626136 51.280712,0.626043 51.280616,0.625964 51.280567,0.625802 51.280433,0.625734 51.280373,0.625612 51.280244,0.625062 51.279819,0.625047 51.279796,0.625041 51.279768,0.625072 51.279737,0.625100 51.279735)))
point: POINT (0.625814 51.28037)
notes: The Maidstone Borough Council Tree Preservation Order No.2, 1983 under provisions of Section 60 & 61 of the Town and Country Planning Act 1971 Woodlands - W7
organisation
entry-date: 1983-02-22
start-date: 1983-02-21
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.