Tree preservation zone

There is a problem

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

reference: 89/00461/C
name: Sedburgh Road, Halifax
tree-preservation-order: undefined
89/00461/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.853814 53.715472,-1.853847 53.715378,-1.853914 53.715114,-1.853905 53.715101,-1.853875 53.715105,-1.853814 53.715385,-1.853748 53.715546,-1.853751 53.715556,-1.853775 53.715557,-1.853814 53.715472)),((-1.853459 53.715491,-1.853469 53.715500,-1.853490 53.715491,-1.853477 53.715482,-1.853459 53.715491)),((-1.853415 53.715176,-1.853425 53.715185,-1.853445 53.715178,-1.853435 53.715168,-1.853415 53.715176)),((-1.853430 53.715159,-1.853445 53.715168,-1.853461 53.715159,-1.853451 53.715150,-1.853430 53.715159)))
point: POINT (-1.85382 53.715319)
notes: Sycamore
entry-date: 1991-09-12
start-date: 1991-09-12
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.