Tree preservation zone

There is a problem

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

reference: 34/TAN W1
name: Land at Kenley Aerodrome
tree-preservation-order: undefined
34/TAN
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-0.086374 51.305256,-0.086364 51.305273,-0.086713 51.305285,-0.087080 51.305327,-0.087512 51.305399,-0.087654 51.305396,-0.087777 51.305380,-0.088045 51.305301,-0.088515 51.305148,-0.088742 51.305146,-0.088887 51.305065,-0.088938 51.304994,-0.088952 51.304865,-0.088927 51.304812,-0.088931 51.304692,-0.088953 51.304621,-0.089080 51.304516,-0.089244 51.304466,-0.089482 51.304416,-0.089569 51.304370,-0.089687 51.304259,-0.089731 51.304123,-0.089691 51.303938,-0.089173 51.303887,-0.089168 51.303780,-0.089027 51.303766,-0.088661 51.303689,-0.088609 51.303581,-0.088460 51.303525,-0.088844 51.302925,-0.088892 51.302670,-0.088873 51.302455,-0.088745 51.302121,-0.088675 51.302300,-0.088446 51.302264,-0.088674 51.302024,-0.088611 51.301922,-0.088598 51.301791,-0.088566 51.301642,-0.088438 51.301550,-0.088276 51.301577,-0.088161 51.301837,-0.087957 51.302203,-0.087571 51.302849,-0.087459 51.303025,-0.087118 51.303508,-0.086824 51.303984,-0.086599 51.304391,-0.086448 51.304823,-0.086374 51.305256)))
point: POINT (-0.087978 51.303932)
notes
organisation
entry-date: 1975-12-01
start-date: 1975-12-01
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.