Tree preservation zone

There is a problem

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

reference: TPO146.A1
name: No info.
tree-preservation-order: undefined
TPO146
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.945295 53.390448,-2.945273 53.390499,-2.945233 53.390584,-2.945455 53.390619,-2.945414 53.390703,-2.945256 53.391053,-2.945254 53.391043,-2.945211 53.391138,-2.945222 53.391135,-2.945194 53.391194,-2.945936 53.391335,-2.946183 53.391380,-2.946490 53.391440,-2.947240 53.391581,-2.948136 53.391753,-2.948242 53.391775,-2.948242 53.391767,-2.948279 53.391652,-2.948314 53.391551,-2.948451 53.391119,-2.948488 53.391030,-2.948606 53.391014,-2.948710 53.390995,-2.948749 53.390986,-2.948888 53.390934,-2.948957 53.390901,-2.948982 53.390886,-2.949065 53.390397,-2.948648 53.390351,-2.948352 53.390321,-2.947075 53.390181,-2.946830 53.390156,-2.946231 53.390091,-2.945995 53.390061,-2.945502 53.390003,-2.945298 53.390444,-2.945296 53.390444,-2.945295 53.390448)))
point: POINT (-2.94706 53.390826)
notes: The several tree of whatever species situated within area A1 on map.
entry-date: 1975-04-04
start-date: 1975-06-23
end-date

Your data is missing a tree-preservation-order.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.