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: ZZZZZWESRW932
name: South Bucks District Council (No. 25) Tree Preservation Order 1998; dated 19/5/98; made under Sectio
tree-preservation-order: undefined
TPO/SBDC/1998/25
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.559279 51.582510,-0.559393 51.582402,-0.559399 51.582393,-0.559405 51.582373,-0.559404 51.582363,-0.559400 51.582354,-0.559386 51.582336,-0.559363 51.582322,-0.559349 51.582317,-0.559319 51.582312,-0.559287 51.582313,-0.559272 51.582316,-0.559258 51.582321,-0.559226 51.582340,-0.559118 51.582434,-0.559104 51.582455,-0.559100 51.582465,-0.559099 51.582476,-0.559100 51.582486,-0.559104 51.582496,-0.559111 51.582506,-0.559120 51.582515,-0.559132 51.582522,-0.559160 51.582533,-0.559193 51.582538,-0.559226 51.582535,-0.559242 51.582531,-0.559256 51.582525,-0.559269 51.582518,-0.559279 51.582510)))
point: POINT (-0.559251 51.582425)
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.