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: tpo160
name: Tickton Grange - 1983
tree-preservation-order: undefined
99
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.373167 53.864733,-0.372616 53.864824,-0.372479 53.864862,-0.372167 53.864903,-0.371336 53.865038,-0.371247 53.865067,-0.371208 53.865094,-0.371216 53.865249,-0.371252 53.865260,-0.371359 53.865256,-0.371875 53.865266,-0.371876 53.865335,-0.371974 53.865341,-0.371970 53.865447,-0.372181 53.865464,-0.372175 53.865594,-0.372157 53.865651,-0.372107 53.865689,-0.371977 53.865682,-0.371873 53.865638,-0.371281 53.865604,-0.371275 53.865640,-0.371168 53.865846,-0.371134 53.866044,-0.371103 53.866354,-0.372108 53.866424,-0.372126 53.866248,-0.372163 53.866003,-0.372174 53.865976,-0.372192 53.865961,-0.372350 53.865885,-0.372467 53.865799,-0.372592 53.865671,-0.372838 53.865341,-0.372949 53.865175,-0.373067 53.864956,-0.373167 53.864733)))
point: POINT (-0.372024 53.865564)
notes
entry-date: 1983-06-15
start-date: 1983-06-15
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.