Tree preservation zone

There is a problem

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

reference: TPO253.A1
name: Liverpool Polytechnic, IM Marsh Campus, Barkhill Road.
tree-preservation-order: undefined
TPO253
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.920893 53.370352,-2.920932 53.370367,-2.920960 53.370344,-2.922715 53.368772,-2.920275 53.367408,-2.919720 53.368004,-2.919413 53.367863,-2.919108 53.368094,-2.918711 53.367878,-2.918668 53.367908,-2.918640 53.367901,-2.918469 53.367914,-2.918451 53.367937,-2.918374 53.367943,-2.918352 53.367923,-2.918332 53.367922,-2.918051 53.367942,-2.917998 53.367998,-2.918243 53.369439,-2.918304 53.369524,-2.918347 53.369543,-2.918371 53.369566,-2.918400 53.369622,-2.918409 53.369743,-2.918409 53.370027,-2.918471 53.370296,-2.918547 53.370524,-2.918598 53.370651,-2.918627 53.370680,-2.918656 53.370779,-2.918644 53.370815,-2.918665 53.370931,-2.918689 53.370992,-2.918729 53.371197,-2.918779 53.371392,-2.918808 53.371464,-2.918981 53.371805,-2.919019 53.371864,-2.919076 53.371888,-2.919098 53.371871,-2.919156 53.371871,-2.919194 53.371887,-2.919251 53.371869,-2.919527 53.371633,-2.920459 53.370796,-2.920429 53.370785,-2.920586 53.370642,-2.920545 53.370626,-2.920760 53.370426,-2.920799 53.370439,-2.920893 53.370352)))
point: POINT (-2.919984 53.36937)
notes: The several tree of whatever species situated within area A1 on map.
organisation
entry-date: 1992-05-08
start-date: 1992-08-11
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.