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: ZZZZDVESXE713
name: The Bucks County Council (Amersham Rural District) Tree Preservation Order No 5 - 1952 Confirmed by
tree-preservation-order: undefined
TPO/1952/005
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.600637 51.607903,-0.601015 51.608009,-0.601192 51.607877,-0.601571 51.608139,-0.601877 51.608390,-0.601868 51.608394,-0.602160 51.608679,-0.602482 51.608930,-0.602453 51.608828,-0.602306 51.608525,-0.602184 51.608241,-0.601953 51.607907,-0.602380 51.607740,-0.601525 51.607263,-0.600761 51.606848,-0.598845 51.605756,-0.598296 51.606131,-0.598065 51.606313,-0.597908 51.606501,-0.597786 51.606662,-0.597660 51.606897,-0.597566 51.606988,-0.596651 51.607658,-0.596986 51.607584,-0.597205 51.607556,-0.598326 51.607484,-0.598536 51.607489,-0.598871 51.607534,-0.599329 51.607568,-0.599771 51.607635,-0.599886 51.607659,-0.600166 51.607736,-0.600445 51.607847,-0.600637 51.607903)))
point: POINT (-0.599657 51.607127)
notes
organisation
entry-date: 2010-02-18
start-date: 2010-02-18
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.