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: 89/00436/C
name: Halifax road, Maurice Ave, Brighouse
tree-preservation-order: undefined
89/00436/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.792388 53.709802,-1.792142 53.709464,-1.792405 53.709291,-1.792799 53.709103,-1.792740 53.709069,-1.792480 53.709217,-1.792032 53.708936,-1.791998 53.708927,-1.791982 53.708951,-1.791915 53.708955,-1.791668 53.709028,-1.791741 53.709192,-1.791146 53.709326,-1.791133 53.709311,-1.791043 53.709332,-1.790912 53.709197,-1.790697 53.709266,-1.790812 53.709424,-1.790942 53.709622,-1.791014 53.709674,-1.791042 53.709704,-1.791235 53.709651,-1.791565 53.709681,-1.791588 53.709693,-1.791633 53.709763,-1.792388 53.709802)))
point: POINT (-1.79171 53.709408)
notes: Ash, sycamore, willow, birch, poplar, cherry, white beam, beech
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.