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: TPO200
name: 5/1983
tree-preservation-order: undefined
5/1983
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.620110 51.271074,0.619945 51.271355,0.619905 51.271506,0.620031 51.271823,0.620087 51.272031,0.620271 51.272411,0.620354 51.272659,0.620526 51.272791,0.620646 51.273002,0.620826 51.273639,0.620763 51.273695,0.620561 51.273599,0.620582 51.273545,0.620660 51.273552,0.620439 51.273125,0.620351 51.272856,0.620265 51.272743,0.620183 51.272716,0.620102 51.272461,0.619969 51.272177,0.619919 51.272009,0.619862 51.271882,0.619830 51.271734,0.619796 51.271635,0.619748 51.271536,0.619646 51.271423,0.619542 51.271342,0.619674 51.271244,0.619877 51.271155,0.620110 51.271074)))
point: POINT (0.620201 51.272348)
notes: The Maidstone Borough Council Tree Preservation Order No.5 of 1983 under provisions of Section 60 & 61 of the Town and Country Planning Act 1971 Woodlands - W6 Comprising the several Oak and Ash
organisation
entry-date: 1983-02-25
start-date: 1983-02-25
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.