Tree preservation zone

There is a problem

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

reference: IATUT6DNBB000
name: Land At Royate Hill Fishponds Bristol Modern PC Is BS5 6LG
tree-preservation-order: undefined
482
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-2.551606 51.471252,-2.551613 51.471235,-2.551606 51.471226,-2.551583 51.471211,-2.551573 51.471214,-2.551558 51.471196,-2.551559 51.471186,-2.551571 51.471181,-2.551563 51.471176,-2.551563 51.471163,-2.551560 51.471160,-2.551542 51.471156,-2.551521 51.471163,-2.551483 51.471167,-2.551471 51.471162,-2.551471 51.471155,-2.551460 51.471152,-2.551455 51.471145,-2.551436 51.471137,-2.551426 51.471140,-2.551398 51.471135,-2.551399 51.471126,-2.551390 51.471124,-2.551389 51.471112,-2.551380 51.471109,-2.551365 51.471112,-2.551356 51.471111,-2.551350 51.471119,-2.551349 51.471124,-2.551356 51.471127,-2.551353 51.471137,-2.551360 51.471148,-2.551392 51.471172,-2.551410 51.471178,-2.551441 51.471206,-2.551458 51.471217,-2.551471 51.471234,-2.551473 51.471247,-2.551479 51.471258,-2.551486 51.471268,-2.551491 51.471272,-2.551505 51.471278,-2.551529 51.471278,-2.551577 51.471265,-2.551596 51.471258,-2.551606 51.471252)))
point: POINT (-2.551492 51.471201)
notes: HAWTHORN - Crataegus monogyna, ELDER - Sambucus nigra
entry-date: 2005-01-24
start-date: 2005-01-24
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.