Tree preservation zone

There is a problem

116 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: 49
name
tree-preservation-order: undefined
G1
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-2.272591 51.834997,-2.272553 51.834980,-2.272509 51.835012,-2.272468 51.835045,-2.272422 51.835091,-2.272393 51.835130,-2.272369 51.835156,-2.272306 51.835232,-2.272293 51.835249,-2.272255 51.835308,-2.272254 51.835365,-2.272260 51.835402,-2.272269 51.835429,-2.272286 51.835459,-2.272315 51.835500,-2.272343 51.835527,-2.272411 51.835587,-2.272488 51.835637,-2.272573 51.835667,-2.272647 51.835682,-2.272742 51.835692,-2.272886 51.835693,-2.272960 51.835682,-2.273000 51.835673,-2.273046 51.835658,-2.273117 51.835626,-2.273236 51.835569,-2.273289 51.835542,-2.273266 51.835520,-2.273221 51.835532,-2.273191 51.835538,-2.273136 51.835559,-2.273068 51.835595,-2.273004 51.835615,-2.272903 51.835625,-2.272825 51.835624,-2.272754 51.835632,-2.272696 51.835632,-2.272631 51.835626,-2.272611 51.835606,-2.272546 51.835602,-2.272471 51.835574,-2.272416 51.835518,-2.272386 51.835472,-2.272347 51.835404,-2.272330 51.835301,-2.272359 51.835241,-2.272427 51.835146,-2.272452 51.835118,-2.272497 51.835080,-2.272575 51.835039,-2.272591 51.834997)))
point: POINT (-2.272623 51.835474)
notes
entry-date: 2007-07-05
start-date: 2007-07-05
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.