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: 86/00184/C/3
name: Christ Church, Scammonden Road, Barkisland
tree-preservation-order: undefined
86/00184/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.919737 53.675235,-1.919779 53.675225,-1.919726 53.675146,-1.919571 53.674958,-1.919533 53.674969,-1.919646 53.675104,-1.919737 53.675235)),((-1.918676 53.675463,-1.918700 53.675441,-1.918664 53.675422,-1.918604 53.675468,-1.918840 53.675583,-1.919937 53.675572,-1.919849 53.675368,-1.919795 53.675375,-1.919873 53.675538,-1.918851 53.675545,-1.918676 53.675463)),((-1.918677 53.675411,-1.918719 53.675429,-1.919439 53.674872,-1.919485 53.674912,-1.919526 53.674907,-1.919436 53.674834,-1.918677 53.675411)),((-1.919597 53.675242,-1.919613 53.675251,-1.919628 53.675240,-1.919607 53.675233,-1.919597 53.675242)))
point: POINT (-1.919289 53.675346)
notes: Sycamore, horse chestnut, lime, beech, ash
entry-date: 1988-07-22
start-date: 1988-07-22
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.