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: 89/00453/C
name: Huddersfield Road/Stratton Road, Brighouse
tree-preservation-order: undefined
89/00453/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.776983 53.696523,-1.777159 53.696224,-1.777407 53.696307,-1.777551 53.696346,-1.778272 53.696349,-1.778545 53.696342,-1.778557 53.696199,-1.778607 53.696004,-1.778708 53.695690,-1.778853 53.695298,-1.778372 53.695232,-1.778590 53.694904,-1.778683 53.694785,-1.778690 53.694760,-1.778728 53.694699,-1.779058 53.694812,-1.779132 53.694661,-1.778684 53.694600,-1.778439 53.694558,-1.778156 53.694888,-1.778035 53.694850,-1.777952 53.694926,-1.776871 53.695620,-1.776633 53.695758,-1.776609 53.695784,-1.776548 53.695811,-1.776486 53.695886,-1.776434 53.695913,-1.776089 53.696158,-1.776145 53.696162,-1.776983 53.696523)))
point: POINT (-1.777742 53.695696)
notes: White beam, silver birch, willow, hawthorn, oak, sycamore, cherry, ash
entry-date: 1989-11-16
start-date: 1989-11-16
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.