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: TPO915
name: 10/1982
tree-preservation-order: undefined
10/1982
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.742513 51.244028,0.742153 51.243650,0.742119 51.243566,0.742102 51.243233,0.742655 51.243261,0.743093 51.243199,0.743284 51.243108,0.743678 51.242962,0.743823 51.242918,0.743985 51.242975,0.744611 51.242799,0.746075 51.242338,0.745966 51.242015,0.745849 51.241773,0.746020 51.241787,0.746297 51.241790,0.746377 51.241847,0.746566 51.242226,0.746636 51.242441,0.746707 51.242628,0.746814 51.242865,0.746712 51.242926,0.746600 51.242968,0.746432 51.243058,0.745971 51.243121,0.745787 51.243165,0.745719 51.243213,0.745017 51.243362,0.744567 51.243496,0.744310 51.243585,0.743516 51.243920,0.743251 51.244055,0.743089 51.244101,0.742971 51.244132,0.742823 51.244155,0.742700 51.244189,0.742537 51.244059,0.742513 51.244028)))
point: POINT (0.744497 51.243132)
notes: The Maidstone Borough Council Tree Preservation Order No.10 of 1982 under the provisions of Section 60 of the Town and Country Act 1971. Woodlands - W3 Comprising the several
organisation
entry-date: 1982-07-08
start-date: 1982-07-08
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.