Tree preservation zone

There is a problem

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

reference: 129/TAN W1
name: Owls Wood Beddlestead Lane Chelsham
tree-preservation-order: undefined
129/TAN
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((0.003827 51.308619,0.003907 51.308254,0.003914 51.307213,0.004006 51.305962,0.004185 51.305021,0.004317 51.305102,0.004723 51.305408,0.004811 51.305504,0.005148 51.305720,0.005597 51.305895,0.006011 51.305965,0.006086 51.306199,0.006097 51.306459,0.006462 51.307742,0.006786 51.308275,0.006836 51.308550,0.007321 51.309459,0.007443 51.310070,0.008332 51.310315,0.008174 51.310890,0.008574 51.311664,0.006724 51.311228,0.004948 51.310789,0.005058 51.310787,0.005093 51.310760,0.005240 51.310758,0.005421 51.310703,0.005488 51.310572,0.005447 51.310468,0.005334 51.310392,0.004785 51.310402,0.004903 51.308605,0.004791 51.308463,0.003861 51.308685,0.003827 51.308619)))
point: POINT (0.005776 51.308602)
notes
organisation
entry-date: 1984-05-10
start-date: 1984-05-10
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.