Tree preservation zone

There is a problem

tree-preservation-order column must match the reference field in the tree preservation order dataset

reference: TPO167.A1
name: No info.
tree-preservation-order: undefined
TPO167
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.892080 53.375990,-2.892466 53.376500,-2.892522 53.376568,-2.892691 53.376795,-2.892767 53.376893,-2.893092 53.376802,-2.893115 53.376793,-2.893142 53.376780,-2.893176 53.376768,-2.893253 53.376732,-2.893325 53.376689,-2.893370 53.376654,-2.893489 53.376571,-2.893555 53.376522,-2.893623 53.376466,-2.893194 53.376215,-2.892963 53.375843,-2.892959 53.375837,-2.892950 53.375833,-2.892941 53.375831,-2.892924 53.375833,-2.892663 53.375874,-2.892372 53.375908,-2.892160 53.375969,-2.892080 53.375990)))
point: POINT (-2.892834 53.376336)
notes: The several tree of whatever species situated within area A1 on map.
entry-date: 1977-07-22
start-date: 1977-11-14
end-date

Your data is missing a tree-preservation-order.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.