Tree preservation zone

There is a problem

tree-preservation-order column must match the reference field in the tree preservation order dataset

reference: TPO7357
name: Boundary of Old Park adj. highway
tree-preservation-order: undefined
Redbourne 1949
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-0.519078 53.483988,-0.519079 53.484012,-0.519086 53.484035,-0.519097 53.484058,-0.519123 53.484090,-0.519145 53.484109,-0.519172 53.484127,-0.519186 53.484135,-0.519234 53.484156,-0.519288 53.484171,-0.519345 53.484180,-0.519385 53.484182,-0.519444 53.484180,-0.519463 53.484178,-0.519520 53.484167,-0.519556 53.484157,-0.519589 53.484143,-0.519619 53.484128,-0.519645 53.484111,-0.519657 53.484101,-0.519678 53.484081,-0.519687 53.484070,-0.519701 53.484048,-0.519706 53.484037,-0.519713 53.484014,-0.519715 53.483990,-0.519712 53.483966,-0.519709 53.483955,-0.519699 53.483932,-0.519692 53.483921,-0.519684 53.483910,-0.519664 53.483889,-0.519628 53.483861,-0.519599 53.483845,-0.519550 53.483825,-0.519495 53.483811,-0.519457 53.483805,-0.519418 53.483802,-0.519358 53.483803,-0.519300 53.483811,-0.519263 53.483819,-0.519228 53.483830,-0.519181 53.483852,-0.519141 53.483878,-0.519110 53.483908,-0.519095 53.483930,-0.519084 53.483953,-0.519081 53.483964,-0.519078 53.483988)))
point: POINT (-0.519396 53.483992)
notes
entry-date: 1949-09-13
start-date: 1949-05-26
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.