Tree preservation zone

There is a problem

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

reference: TPO025.A1
name: Within the Grassendale Park Conservation Area.
tree-preservation-order: undefined
TPO025
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.918754 53.355048,-2.918682 53.355109,-2.918518 53.355201,-2.918360 53.355314,-2.918355 53.355319,-2.918367 53.355327,-2.918005 53.355580,-2.916619 53.356523,-2.915620 53.357152,-2.915397 53.357284,-2.915446 53.357310,-2.914975 53.357617,-2.914900 53.357578,-2.914803 53.357643,-2.916528 53.358480,-2.916212 53.358731,-2.916289 53.358766,-2.916321 53.358791,-2.916335 53.358821,-2.916330 53.358853,-2.916300 53.358907,-2.916120 53.359081,-2.916115 53.359107,-2.916154 53.359121,-2.916188 53.359114,-2.916742 53.358741,-2.917129 53.358620,-2.918348 53.358072,-2.918349 53.358043,-2.918416 53.358016,-2.918460 53.358022,-2.919464 53.357580,-2.919956 53.357422,-2.920611 53.357160,-2.921093 53.356876,-2.921147 53.356830,-2.921154 53.356712,-2.921168 53.356651,-2.921185 53.356616,-2.921248 53.356543,-2.919388 53.355307,-2.918868 53.354970,-2.918852 53.354962,-2.918754 53.355048)))
point: POINT (-2.918139 53.35696)
notes: The several tree of whatever species situated within area A1 on map.
organisation
entry-date: 1972-03-09
start-date: 1972-05-30
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.