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: TPO719
name: 10/1975
tree-preservation-order: undefined
10/1975
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.574027 51.296664,0.573742 51.296603,0.573508 51.296564,0.573220 51.296537,0.572663 51.296530,0.572145 51.296561,0.571856 51.296560,0.571706 51.296530,0.571262 51.296413,0.571298 51.296385,0.571500 51.296275,0.571482 51.296256,0.571501 51.296247,0.571520 51.296242,0.571648 51.296262,0.571734 51.296246,0.571882 51.296202,0.571921 51.296199,0.572023 51.296207,0.572130 51.296226,0.572220 51.296207,0.572259 51.296188,0.572316 51.296180,0.572448 51.296199,0.572488 51.296243,0.572554 51.296359,0.572811 51.296321,0.573246 51.296305,0.573296 51.296280,0.573311 51.296229,0.573319 51.296158,0.573397 51.295934,0.573424 51.295900,0.573502 51.295846,0.573528 51.295856,0.573547 51.295877,0.573618 51.296048,0.573654 51.296166,0.573680 51.296200,0.573709 51.296227,0.573926 51.296333,0.573978 51.296372,0.574009 51.296407,0.574023 51.296432,0.574033 51.296488,0.574027 51.296664)))
point: POINT (0.572806 51.296371)
notes: Maidstone Borough Council Tree Preservation Order No. 10 of 1975 under Section 60 of the Town and Country Planning Act 1971. Woodlands - W1 Comprising the following species
organisation
entry-date: 1975-02-10
start-date: 1975-02-07
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.