Tree preservation zone

There is a problem

365 entries with tree-protection-order field must match the reference field in the tree protection order dataset

reference: ICEUBPDNBB000
name: Longacres The Ridgeway Bristol BS10 7DG
tree-preservation-order: undefined
155
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-2.619139 51.502118,-2.619178 51.502184,-2.619169 51.502198,-2.619210 51.502260,-2.619229 51.502313,-2.619220 51.502330,-2.619245 51.502355,-2.619269 51.502404,-2.619291 51.502420,-2.619343 51.502532,-2.619347 51.502566,-2.619366 51.502578,-2.619420 51.502667,-2.619437 51.502676,-2.619439 51.502695,-2.619510 51.502751,-2.619510 51.502764,-2.619557 51.502798,-2.619616 51.502894,-2.619638 51.502909,-2.619647 51.502886,-2.619633 51.502859,-2.619564 51.502728,-2.619465 51.502568,-2.619384 51.502410,-2.619362 51.502392,-2.619311 51.502279,-2.619282 51.502239,-2.619210 51.502102,-2.619202 51.502073,-2.619119 51.501939,-2.619074 51.501936,-2.619056 51.501947,-2.619059 51.501962,-2.619111 51.502041,-2.619139 51.502118)))
point: POINT (-2.619335 51.502408)
notes: JUNIPER - Juniperus,BAY - Laurus noblis,HAWTHORN - Crataegus monogyna,BOX - Buxus semper virens,LAWSON CYPRESS - Chamaecyparis lawsoniana and various other shrubs
organisation
entry-date: 2005-02-24
start-date: 2005-02-24
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.