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: ZZZZZUESRW587
name: South Bucks District Council Tree Preservation Order No.14; 2001; dated 14/11/2001. confirmed 11/3/2
tree-preservation-order: undefined
TPO/SBDC/2001/14
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.567832 51.586841,-0.567634 51.587108,-0.567640 51.587163,-0.567643 51.587224,-0.567790 51.587259,-0.567901 51.587282,-0.567932 51.587288,-0.567997 51.587293,-0.568075 51.587287,-0.568136 51.587275,-0.568200 51.587270,-0.568246 51.587264,-0.568271 51.587259,-0.568313 51.587246,-0.568341 51.587232,-0.568357 51.587219,-0.568363 51.587212,-0.568377 51.587182,-0.568387 51.587148,-0.568388 51.587129,-0.568386 51.587112,-0.568380 51.587071,-0.568372 51.587044,-0.568364 51.587028,-0.568357 51.587018,-0.568348 51.587007,-0.568336 51.586997,-0.568325 51.586990,-0.568309 51.586983,-0.568270 51.586973,-0.568243 51.586969,-0.568202 51.586965,-0.568163 51.586965,-0.568130 51.586968,-0.568089 51.586967,-0.568014 51.586959,-0.567951 51.586947,-0.567933 51.586941,-0.567908 51.586929,-0.567878 51.586905,-0.567861 51.586885,-0.567857 51.586877,-0.567852 51.586872,-0.567832 51.586841)))
point: POINT (-0.568005 51.58711)
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.