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: ZZZZZVESRW660
name: South Bucks District Council Tree Preservation Order No. 12; 2003 dated 25/9/2003. Confirmed with mo
tree-preservation-order: undefined
TPO/SBDC/2003/12
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.589797 51.551352,-0.589773 51.551341,-0.589764 51.551335,-0.589748 51.551331,-0.589738 51.551332,-0.589717 51.551339,-0.589701 51.551368,-0.589691 51.551381,-0.589683 51.551391,-0.589669 51.551400,-0.589656 51.551405,-0.589646 51.551406,-0.589593 51.551400,-0.589563 51.551404,-0.589556 51.551408,-0.589552 51.551415,-0.589551 51.551424,-0.589557 51.551443,-0.589573 51.551471,-0.589589 51.551484,-0.589597 51.551488,-0.589610 51.551493,-0.589632 51.551495,-0.589653 51.551496,-0.589670 51.551493,-0.589683 51.551488,-0.589734 51.551452,-0.589739 51.551445,-0.589739 51.551440,-0.589726 51.551418,-0.589724 51.551411,-0.589728 51.551404,-0.589736 51.551396,-0.589745 51.551392,-0.589802 51.551378,-0.589810 51.551374,-0.589813 51.551368,-0.589813 51.551361,-0.589811 51.551356,-0.589797 51.551352)))
point: POINT (-0.589673 51.551422)
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.