Tree preservation zone

There is a problem

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

reference: TPO217.A1
name: Site of Newsham General Hospital off Belmont Road.
tree-preservation-order: undefined
TPO217
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.945736 53.425121,-2.945190 53.425468,-2.945750 53.425709,-2.946552 53.426022,-2.947738 53.425287,-2.949098 53.424425,-2.948731 53.424255,-2.949615 53.423413,-2.949788 53.423272,-2.950102 53.423051,-2.949873 53.422930,-2.949330 53.422564,-2.949281 53.422554,-2.949247 53.422561,-2.949006 53.422683,-2.948683 53.422873,-2.948478 53.423018,-2.948416 53.423068,-2.948340 53.423147,-2.948308 53.423164,-2.948220 53.423242,-2.947498 53.422777,-2.946854 53.423075,-2.946585 53.423204,-2.946150 53.423471,-2.944858 53.424311,-2.945203 53.424494,-2.944904 53.424694,-2.945305 53.424909,-2.945486 53.424982,-2.945736 53.425121)))
point: POINT (-2.947277 53.424223)
notes: The several tree of whatever species situated within area A1 on map.
organisation
entry-date: 1991-05-24
start-date: 1991-09-17
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.