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: ZZZZZTESRW914
name: South Bucks District Council Tree Preservation Order No. 6; 2003 dated 14/5/2003. the South Bucks Di
tree-preservation-order: undefined
TPO/SBDC/2003/06
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.570107 51.572561,-0.570010 51.572538,-0.569992 51.572535,-0.569974 51.572535,-0.569916 51.572547,-0.569890 51.572548,-0.569859 51.572544,-0.569847 51.572541,-0.569825 51.572532,-0.569815 51.572530,-0.569772 51.572532,-0.569760 51.572536,-0.569752 51.572541,-0.569748 51.572549,-0.569747 51.572559,-0.569748 51.572571,-0.569753 51.572580,-0.569813 51.572650,-0.569831 51.572657,-0.569846 51.572658,-0.569862 51.572655,-0.569886 51.572658,-0.569932 51.572668,-0.569950 51.572669,-0.569964 51.572663,-0.569987 51.572643,-0.570017 51.572620,-0.570032 51.572614,-0.570050 51.572610,-0.570077 51.572607,-0.570117 51.572599,-0.570133 51.572592,-0.570139 51.572587,-0.570138 51.572580,-0.570131 51.572570,-0.570107 51.572561)))
point: POINT (-0.569922 51.572592)
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.