Tree preservation zone

There is a problem

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

reference: TPO140.A1
name: Standing within the area numbered A1 on the map.
tree-preservation-order: undefined
TPO140
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.877954 53.381295,-2.877977 53.381349,-2.878010 53.381443,-2.878054 53.381525,-2.878086 53.381574,-2.878099 53.381591,-2.878203 53.381614,-2.878691 53.381455,-2.878822 53.381415,-2.879217 53.381289,-2.879185 53.381253,-2.879241 53.381234,-2.879268 53.381266,-2.879275 53.381270,-2.879326 53.381254,-2.879327 53.381246,-2.879298 53.381216,-2.879349 53.381199,-2.879383 53.381237,-2.879776 53.381118,-2.880162 53.381011,-2.880195 53.380944,-2.879438 53.380273,-2.878495 53.380591,-2.878088 53.380725,-2.878352 53.381011,-2.877895 53.381158,-2.877908 53.381182,-2.877927 53.381235,-2.877954 53.381295)))
point: POINT (-2.878978 53.380941)
notes: The several tree of whatever species situated within area A1 on map.
entry-date: 1974-09-05
start-date: 1975-11-04
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.