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: ZZZZZTESRW031
name: South Bucks District Council Tree Preservation Order No.22; 2004; dated 23/7/04. Confirmed 22/10/200
tree-preservation-order: undefined
TPO/SBDC/2004/22
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.612113 51.565333,-0.612103 51.565341,-0.612096 51.565350,-0.612089 51.565363,-0.612085 51.565395,-0.612089 51.565406,-0.612095 51.565415,-0.612106 51.565425,-0.612128 51.565435,-0.612161 51.565442,-0.612182 51.565444,-0.612215 51.565442,-0.612235 51.565439,-0.612257 51.565435,-0.612273 51.565428,-0.612287 51.565418,-0.612294 51.565406,-0.612297 51.565389,-0.612292 51.565370,-0.612282 51.565353,-0.612263 51.565336,-0.612246 51.565326,-0.612220 51.565318,-0.612203 51.565315,-0.612169 51.565315,-0.612143 51.565320,-0.612121 51.565327,-0.612113 51.565333)))
point: POINT (-0.61219 51.565381)
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.