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: tpo234
name: Slights Plantation, Valley Drive, Kirkella - 1986
tree-preservation-order: undefined
223
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-0.459908 53.750292,-0.460489 53.750153,-0.460593 53.749883,-0.460599 53.749730,-0.460511 53.749554,-0.460388 53.749379,-0.460117 53.749096,-0.460085 53.748984,-0.460244 53.748840,-0.460807 53.748861,-0.460997 53.748815,-0.461179 53.748650,-0.461206 53.748553,-0.461198 53.748462,-0.461083 53.748398,-0.460792 53.748325,-0.460711 53.748282,-0.460678 53.748211,-0.460694 53.748107,-0.460232 53.747857,-0.460097 53.747649,-0.460029 53.747504,-0.459900 53.747160,-0.459901 53.746988,-0.459920 53.746919,-0.459989 53.746803,-0.460096 53.746694,-0.460180 53.746634,-0.460214 53.746556,-0.460264 53.746471,-0.460410 53.746298,-0.460423 53.746270,-0.458602 53.746966,-0.457840 53.747336,-0.459908 53.750292)))
point: POINT (-0.459552 53.748238)
notes
entry-date: 1986-01-22
start-date: 1986-01-22
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.