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: ZZZZZTESRW187
name: South Bucks Council (No. 12) Tree Preservation Order 1992; dated 10/11/92; made under Sections 198;
tree-preservation-order: undefined
TPO/SBDC/1992/12
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.485811 51.573667,-0.485800 51.573711,-0.485791 51.573738,-0.485784 51.573780,-0.485766 51.573863,-0.485758 51.573875,-0.485742 51.573893,-0.485712 51.573913,-0.485666 51.573949,-0.485614 51.573993,-0.485595 51.574004,-0.485583 51.574013,-0.485567 51.574022,-0.485519 51.574041,-0.485425 51.574066,-0.484898 51.574229,-0.484835 51.574250,-0.484788 51.574271,-0.484722 51.574304,-0.484635 51.574370,-0.484468 51.574514,-0.484352 51.574623,-0.484313 51.574662,-0.484219 51.574768,-0.484156 51.574848,-0.484129 51.574908,-0.484113 51.574949,-0.484102 51.574992,-0.484093 51.575037,-0.484143 51.575042,-0.484182 51.574917,-0.484187 51.574894,-0.484194 51.574885,-0.484212 51.574876,-0.484289 51.574859,-0.484467 51.574808,-0.484537 51.574772,-0.485339 51.574341,-0.486075 51.573932,-0.486117 51.573894,-0.486137 51.573869,-0.486144 51.573844,-0.486145 51.573816,-0.486136 51.573784,-0.486126 51.573767,-0.486102 51.573752,-0.486066 51.573731,-0.485935 51.573679,-0.485854 51.573666,-0.485811 51.573667)))
point: POINT (-0.485135 51.5743)
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.