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: ZZZZZTESRW127
name: South Bucks District Council (No.10) Tree Preservation Order 1994; dated 24/8/94; made under Section
tree-preservation-order: undefined
TPO/SBDC/1994/10
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.619740 51.599118,-0.619742 51.599130,-0.619748 51.599141,-0.619765 51.599162,-0.619787 51.599180,-0.619814 51.599196,-0.620144 51.599265,-0.620598 51.599375,-0.620891 51.599451,-0.620962 51.599466,-0.621039 51.599472,-0.621104 51.599475,-0.621153 51.599475,-0.621196 51.599465,-0.621236 51.599451,-0.621253 51.599443,-0.621268 51.599432,-0.621282 51.599420,-0.621296 51.599404,-0.621302 51.599396,-0.621307 51.599381,-0.621309 51.599365,-0.621304 51.599342,-0.621261 51.599335,-0.620917 51.599259,-0.620428 51.599156,-0.619994 51.599071,-0.619958 51.599071,-0.619910 51.599079,-0.619740 51.599118)))
point: POINT (-0.620557 51.599274)
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.