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: ZZZZZUESRW941
name: South Bucks District Council (No.23) Tree Preservation Order 2000; dated 17/3/00; made under Section
tree-preservation-order: undefined
TPO/SBDC/2000/23
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.672184 51.535108,-0.672250 51.535081,-0.672510 51.534981,-0.673047 51.534779,-0.673248 51.534707,-0.673356 51.534665,-0.673284 51.534565,-0.673210 51.534578,-0.673155 51.534597,-0.672985 51.534675,-0.672950 51.534686,-0.672921 51.534693,-0.672718 51.534731,-0.672659 51.534741,-0.672628 51.534744,-0.672624 51.534743,-0.672598 51.534726,-0.672577 51.534701,-0.672570 51.534689,-0.672553 51.534642,-0.672527 51.534582,-0.672514 51.534565,-0.672499 51.534555,-0.672468 51.534547,-0.672383 51.534543,-0.672416 51.534646,-0.672443 51.534747,-0.672451 51.534810,-0.672432 51.534855,-0.672415 51.534867,-0.672405 51.534872,-0.672370 51.534881,-0.672330 51.534889,-0.672223 51.534903,-0.672073 51.534937,-0.672139 51.535066,-0.672184 51.535108)))
point: POINT (-0.672651 51.534811)
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.