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: ZZZZZXESRW056
name: South Bucks District Council (No. 24) Tree Preservation Order 1989; dated 6/12/89; made under Sectio
tree-preservation-order: undefined
TPO/SBDC/1989/24
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.650842 51.609443,-0.650874 51.609440,-0.650889 51.609436,-0.650903 51.609430,-0.650924 51.609415,-0.650931 51.609406,-0.650936 51.609396,-0.650937 51.609386,-0.650936 51.609376,-0.650932 51.609366,-0.650926 51.609357,-0.650917 51.609349,-0.650905 51.609341,-0.650892 51.609335,-0.650862 51.609328,-0.650846 51.609327,-0.650814 51.609330,-0.650799 51.609334,-0.650785 51.609340,-0.650764 51.609355,-0.650757 51.609364,-0.650751 51.609384,-0.650752 51.609394,-0.650756 51.609404,-0.650762 51.609413,-0.650783 51.609429,-0.650796 51.609435,-0.650826 51.609442,-0.650842 51.609443)))
point: POINT (-0.650844 51.609385)
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.