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: ZZZZDUESXE183
name: The Chiltern District Council (Land at Laneside House and Greenoaks, Bottom Lane, Seer Green) Tree P
tree-preservation-order: undefined
TPO/1993/003
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.615882 51.615487,-0.615877 51.615494,-0.615500 51.615394,-0.615385 51.615587,-0.616605 51.615565,-0.616573 51.615329,-0.616495 51.615311,-0.616496 51.615277,-0.616553 51.615261,-0.616485 51.614975,-0.616439 51.614968,-0.616426 51.614939,-0.616471 51.614915,-0.616374 51.614474,-0.615778 51.614441,-0.615769 51.614503,-0.615832 51.614541,-0.615858 51.614570,-0.615860 51.614587,-0.615791 51.614755,-0.615790 51.614810,-0.615918 51.614904,-0.615936 51.614934,-0.615936 51.614948,-0.615917 51.614970,-0.615871 51.614984,-0.615591 51.615012,-0.615630 51.615045,-0.615600 51.615099,-0.615948 51.615110,-0.616139 51.615143,-0.616250 51.615188,-0.616320 51.615264,-0.616330 51.615291,-0.616329 51.615368,-0.616306 51.615401,-0.616290 51.615411,-0.616216 51.615421,-0.615955 51.615406,-0.615916 51.615439,-0.615882 51.615487)))
point: POINT (-0.616123 51.615039)
notes
organisation
entry-date: 2010-02-18
start-date: 2010-02-18
end-date

Your dataset is missing the tree-preservation-order column.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.