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: TPO955
name: 7/1990
tree-preservation-order: undefined
7/1990
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.660318 51.253269,0.660438 51.253207,0.660720 51.253100,0.661377 51.253001,0.661525 51.252989,0.661538 51.253027,0.662371 51.253626,0.662861 51.254081,0.662884 51.254111,0.662893 51.254149,0.662886 51.254201,0.662865 51.254238,0.662797 51.254306,0.662662 51.254387,0.662434 51.254488,0.662280 51.254541,0.662128 51.254578,0.662027 51.254590,0.661962 51.254580,0.661971 51.254565,0.661867 51.254535,0.661629 51.254398,0.661136 51.254046,0.660814 51.253760,0.660318 51.253269)))
point: POINT (0.661662 51.253771)
notes: The Maidstone Borough Council Tree Preservation Order No 7 of 1990 under Section 60 of the Town and Country Planning Act 1971 Woodlands - W8 mixed Deciduous and Conifer
organisation
entry-date: 1990-10-05
start-date: 1990-10-02
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.