Tree preservation zone

There is a problem

453 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: 94/00829/C
name: South of the Hullet, Upper Stainstall
tree-preservation-order: undefined
94/00829/C
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-1.950058 53.751707,-1.950121 53.751721,-1.950218 53.751717,-1.950261 53.751706,-1.950373 53.751658,-1.950473 53.751596,-1.950622 53.751485,-1.950853 53.751345,-1.951227 53.751144,-1.951338 53.751093,-1.951557 53.750969,-1.951784 53.750826,-1.951945 53.750689,-1.952013 53.750619,-1.952060 53.750556,-1.952136 53.750411,-1.951958 53.750365,-1.951771 53.750333,-1.951318 53.750290,-1.951236 53.750252,-1.951139 53.750166,-1.951072 53.750205,-1.951107 53.750227,-1.951133 53.750291,-1.951212 53.750377,-1.951236 53.750416,-1.951315 53.750486,-1.951380 53.750562,-1.951681 53.750723,-1.951633 53.750769,-1.951528 53.750825,-1.951232 53.751024,-1.951042 53.751133,-1.950772 53.751267,-1.950443 53.751465,-1.950102 53.751694,-1.950058 53.751707)))
point: POINT (-1.951367 53.750798)
notes: Alder, silver birch, hawthorn, holly, oak, sycamore
entry-date: 1994-04-15
start-date: 1994-04-15
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.