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: ZZZZZWESRW204
name: South Bucks District Council (No. 24) Tree Preservation Order 1995; dated 31/5/95; made under Sectio
tree-preservation-order: undefined
TPO/SBDC/1995/24
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.568123 51.548343,-0.569141 51.548449,-0.569181 51.548393,-0.569220 51.548270,-0.569249 51.548274,-0.569319 51.548100,-0.569365 51.547968,-0.569367 51.547956,-0.569366 51.547950,-0.569356 51.547938,-0.569349 51.547934,-0.569326 51.547927,-0.569330 51.547916,-0.569300 51.547911,-0.569221 51.547905,-0.569158 51.547903,-0.569117 51.547905,-0.569068 51.547910,-0.569004 51.547919,-0.568937 51.547932,-0.568861 51.547948,-0.568662 51.547994,-0.568543 51.548010,-0.568469 51.548012,-0.568378 51.548030,-0.568336 51.548044,-0.568309 51.548062,-0.568254 51.548104,-0.568163 51.548184,-0.568161 51.548187,-0.568123 51.548343)))
point: POINT (-0.568792 51.548179)
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.