Tree preservation zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: ZZZZZSESRW259
name: South Bucks District Council Tree Preservation Order (No.2) 1982; dated 19/10/82 under Ss.60 and 61
tree-preservation-order: undefined
TPO/SBDC/1982/02
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.617764 51.563510,-0.617811 51.563510,-0.617827 51.563508,-0.617843 51.563504,-0.617870 51.563491,-0.617881 51.563483,-0.617889 51.563474,-0.617895 51.563464,-0.617898 51.563453,-0.617898 51.563443,-0.617895 51.563432,-0.617890 51.563422,-0.617872 51.563404,-0.617845 51.563391,-0.617829 51.563387,-0.617716 51.563373,-0.617612 51.563363,-0.617514 51.563357,-0.617487 51.563360,-0.617463 51.563368,-0.617444 51.563381,-0.617438 51.563388,-0.617434 51.563397,-0.617432 51.563405,-0.617432 51.563414,-0.617434 51.563422,-0.617446 51.563438,-0.617454 51.563444,-0.617487 51.563456,-0.617526 51.563469,-0.617586 51.563481,-0.617615 51.563485,-0.617700 51.563501,-0.617764 51.563510)))
point: POINT (-0.617672 51.563431)
notes
entry-date: 2017-07-04
start-date: 2017-07-04
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.