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: TPO656
name: 5/1983
tree-preservation-order: undefined
5/1983
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.618201 51.275255,0.618244 51.275268,0.618282 51.275294,0.618301 51.275343,0.618350 51.275408,0.618396 51.275448,0.618451 51.275525,0.618475 51.275563,0.618510 51.275699,0.618692 51.275974,0.618711 51.276052,0.618681 51.276128,0.618654 51.276144,0.618347 51.276285,0.618195 51.276381,0.618163 51.276410,0.618101 51.276431,0.618068 51.276430,0.618048 51.276409,0.618057 51.276374,0.618078 51.276347,0.618247 51.276224,0.618387 51.276148,0.618496 51.276101,0.618524 51.276071,0.618532 51.276042,0.618364 51.275779,0.618326 51.275684,0.618289 51.275557,0.618267 51.275518,0.618220 51.275457,0.618137 51.275372,0.618125 51.275342,0.618119 51.275277,0.618153 51.275259,0.618201 51.275255)))
point: POINT (0.618403 51.275853)
notes: Maidstone Borough Council Tree Preservation Order No 5 of 1983 as varied by the Maidstone Borough Council Tree Preservation Order No.17 of 1988 made under Section 60 of the Town and Country Planning Act 1971
organisation
entry-date: 1988-11-05
start-date: 1988-11-06
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.