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: ZZZZZXESRW030
name: Beaconsfield District Council (No.5) Tree Preservation Order 1979 dated 21/12/79 under Ss.60 & 61 of
tree-preservation-order: undefined
TPO/BD/1979/05
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.657293 51.541060,-0.657252 51.540698,-0.657230 51.540596,-0.657200 51.540564,-0.657139 51.540539,-0.657084 51.540539,-0.657036 51.540555,-0.657014 51.540574,-0.657003 51.540596,-0.657013 51.540762,-0.657072 51.541043,-0.657091 51.541075,-0.657121 51.541101,-0.657175 51.541122,-0.657252 51.541112,-0.657283 51.541089,-0.657293 51.541060)),((-0.654546 51.541073,-0.654541 51.541052,-0.654513 51.541026,-0.654485 51.541015,-0.654436 51.541010,-0.654375 51.541026,-0.654338 51.541059,-0.654330 51.541078,-0.654323 51.541196,-0.654332 51.541445,-0.654349 51.541493,-0.654390 51.541519,-0.654445 51.541529,-0.654483 51.541525,-0.654532 51.541506,-0.654552 51.541480,-0.654546 51.541073)))
point: POINT (-0.655912 51.541028)
notes
organisation
entry-date: 2017-07-04
start-date: 2017-07-04
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.