Tree preservation zone

There is a problem

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

reference: TPO091.A1
name: No info.
tree-preservation-order: undefined
TPO091
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.957825 53.391040,-2.957659 53.391163,-2.958301 53.391471,-2.958807 53.391711,-2.959095 53.391851,-2.959384 53.391988,-2.959555 53.392073,-2.960123 53.392344,-2.960230 53.392262,-2.960355 53.392169,-2.960361 53.392172,-2.960554 53.392029,-2.960465 53.391987,-2.960048 53.391782,-2.959976 53.391746,-2.959971 53.391738,-2.959905 53.391787,-2.959767 53.391712,-2.959318 53.391487,-2.959148 53.391611,-2.958777 53.391427,-2.957899 53.390984,-2.957825 53.391040)))
point: POINT (-2.959241 53.391714)
notes: The several tree of whatever species situated within area A1 on map.
entry-date: 1971-12-31
start-date: 1972-03-29
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.