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: TPO803
name: 3/1969
tree-preservation-order: undefined
3/1969
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.699009 51.258050,0.698942 51.257962,0.698872 51.257846,0.698573 51.257629,0.698495 51.257646,0.698331 51.257698,0.698132 51.257789,0.697810 51.257877,0.697709 51.257926,0.697568 51.257976,0.697492 51.258012,0.697423 51.258028,0.697108 51.258059,0.696846 51.258062,0.696170 51.258036,0.696051 51.258019,0.695147 51.257938,0.694600 51.257919,0.694254 51.257889,0.694078 51.257901,0.694065 51.257900,0.694047 51.257878,0.694117 51.257859,0.694311 51.257832,0.694405 51.257832,0.694712 51.257849,0.695267 51.257914,0.696018 51.257945,0.696893 51.258008,0.696989 51.258009,0.697382 51.257966,0.697598 51.257904,0.698391 51.257571,0.698502 51.257543,0.698537 51.257527,0.698687 51.257510,0.699120 51.257501,0.699235 51.257502,0.699291 51.257516,0.699319 51.257558,0.699329 51.257710,0.699286 51.257771,0.699285 51.257761,0.699009 51.258050)))
point: POINT (0.697648 51.257803)
notes: County of Kent (Hollingbourne Rural District) Tree Preservation Order No 3, 1969, trees and woodland on O.S. plots 4161, 3524, 5600 and 0068. Woodlands - W1 Mixed hardwoods consisting
organisation
entry-date: 1970-03-12
start-date: 1969-12-30
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.