Tree preservation zone

There is a problem

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

reference: 9/GOD W8
name: On the south side of Gayhouse Lane near Hornecourt Manor Farm in the parish of Horne
tree-preservation-order: undefined
9/GOD
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-0.095131 51.188553,-0.094950 51.188692,-0.094927 51.188717,-0.094811 51.188682,-0.094779 51.188889,-0.094805 51.189123,-0.094800 51.189231,-0.094760 51.189348,-0.094650 51.189479,-0.094683 51.189529,-0.094376 51.189591,-0.093841 51.189541,-0.093352 51.189508,-0.093223 51.189514,-0.092830 51.189699,-0.092481 51.189669,-0.091651 51.189553,-0.090904 51.189541,-0.090065 51.189511,-0.088990 51.189501,-0.088973 51.189634,-0.089017 51.189795,-0.089263 51.190358,-0.090240 51.192157,-0.090405 51.192401,-0.090518 51.192503,-0.090846 51.192475,-0.091588 51.192604,-0.092330 51.192750,-0.092455 51.192551,-0.092763 51.191890,-0.092774 51.191607,-0.094454 51.191667,-0.095070 51.191461,-0.095393 51.191550,-0.095866 51.191424,-0.096153 51.191262,-0.096442 51.191066,-0.096710 51.190804,-0.096693 51.190620,-0.096498 51.190284,-0.096207 51.189962,-0.095937 51.189708,-0.095660 51.189620,-0.095487 51.189284,-0.095204 51.188796,-0.095131 51.188553)))
point: POINT (-0.092703 51.190722)
notes
organisation
entry-date: 1951-04-20
start-date: 1951-04-20
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.