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: ZZZZZSESRW817
name: South Bucks District Council (No.48) Tree Preservation Order 1995; dated 23/11/95; made under Sectio
tree-preservation-order: undefined
TPO/SBDC/1995/48
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.661126 51.605549,-0.661144 51.606077,-0.661414 51.606067,-0.661425 51.606073,-0.661379 51.606121,-0.661599 51.606129,-0.661912 51.606097,-0.662061 51.606109,-0.662178 51.606104,-0.662236 51.606186,-0.662704 51.606202,-0.663367 51.606239,-0.663385 51.606116,-0.663383 51.606051,-0.663362 51.605926,-0.663254 51.605829,-0.663193 51.605750,-0.663153 51.605598,-0.663142 51.605500,-0.663085 51.605518,-0.662930 51.605170,-0.662850 51.605037,-0.662792 51.604990,-0.662731 51.604960,-0.662527 51.604895,-0.662419 51.604867,-0.662158 51.604835,-0.662168 51.604758,-0.662217 51.604617,-0.662222 51.604537,-0.661424 51.605246,-0.661225 51.605447,-0.661263 51.605413,-0.661300 51.605394,-0.661354 51.605382,-0.661399 51.605385,-0.661442 51.605410,-0.661459 51.605435,-0.661461 51.605472,-0.661444 51.605499,-0.661407 51.605521,-0.661246 51.605532,-0.661126 51.605549)))
point: POINT (-0.662242 51.605586)
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.