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: ZZZZZVESRW675
name: South Bucks District Council Tree Preservation Order No.3; dated 3/2/2005. Confirmed 21/4/2005.
tree-preservation-order: undefined
TPO/SBDC/2005/03
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.544552 51.575595,-0.544706 51.575411,-0.544809 51.575270,-0.544892 51.575083,-0.544918 51.574961,-0.544921 51.574873,-0.544873 51.574698,-0.544659 51.574217,-0.544806 51.574032,-0.544713 51.574007,-0.544639 51.573974,-0.544332 51.573773,-0.544182 51.573738,-0.543835 51.573710,-0.543654 51.573716,-0.543392 51.573741,-0.543203 51.573779,-0.542967 51.573838,-0.542787 51.573897,-0.542660 51.573955,-0.542528 51.574067,-0.542383 51.574334,-0.542309 51.574483,-0.542302 51.574518,-0.542325 51.574544,-0.542415 51.574603,-0.542425 51.574703,-0.542442 51.574717,-0.542769 51.574851,-0.542948 51.574932,-0.542999 51.574964,-0.543027 51.575003,-0.543055 51.575072,-0.543060 51.575134,-0.543051 51.575199,-0.543826 51.575441,-0.543882 51.575382,-0.544552 51.575595)))
point: POINT (-0.543741 51.574572)
notes
organisation
entry-date: 2017-07-04
start-date: 2017-07-04
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.