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: ZZZZZVESRW416
name: Beaconsfield District Council (No.10) Tree Preservation Order 1975; dated 21/8/75 under Ss. 60 and 6
tree-preservation-order: undefined
TPO/BD/1975/10
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.647856 51.613354,-0.647977 51.613633,-0.647993 51.613657,-0.648003 51.613669,-0.648017 51.613682,-0.648060 51.613678,-0.648645 51.613553,-0.648765 51.613549,-0.648785 51.613551,-0.648830 51.613552,-0.649013 51.613548,-0.649179 51.613538,-0.649470 51.613514,-0.649638 51.613498,-0.649677 51.613498,-0.649735 51.613501,-0.649764 51.613497,-0.649769 51.613495,-0.649781 51.613486,-0.649786 51.613478,-0.649787 51.613473,-0.649778 51.613460,-0.649742 51.613433,-0.649716 51.613419,-0.649161 51.613150,-0.648781 51.612940,-0.648588 51.612844,-0.648570 51.612844,-0.648559 51.612847,-0.648509 51.612872,-0.648487 51.612889,-0.648660 51.613137,-0.648682 51.613180,-0.647856 51.613354)))
point: POINT (-0.648744 51.613348)
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.