Tree preservation zone

There is a problem

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

reference: TPO138.A1
name: No info.
tree-preservation-order: undefined
TPO138
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.901488 53.429583,-2.900721 53.429861,-2.900836 53.429921,-2.901198 53.430326,-2.901099 53.430398,-2.901128 53.430427,-2.899924 53.430881,-2.899726 53.430941,-2.900280 53.431576,-2.900739 53.431404,-2.900647 53.431319,-2.902813 53.430373,-2.903123 53.430229,-2.902727 53.429804,-2.902702 53.429813,-2.902661 53.429778,-2.902483 53.429601,-2.902188 53.429330,-2.902898 53.429075,-2.902681 53.428998,-2.902540 53.428960,-2.902451 53.428940,-2.902311 53.428922,-2.901886 53.428906,-2.900975 53.428925,-2.901018 53.428998,-2.901077 53.429074,-2.901298 53.429354,-2.901351 53.429407,-2.901308 53.429422,-2.901381 53.429493,-2.901392 53.429489,-2.901488 53.429583)))
point: POINT (-2.901553 53.430157)
notes: The several tree of whatever species situated within area A1 on map.
organisation
entry-date: 1974-08-05
start-date: 1974-12-18
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.