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: ZZZZZUESRW654
name: South Bucks District Council Tree Preservation Order No.20; 2001 dated 20/4/2001. confirmed 18/9/200
tree-preservation-order: undefined
TPO/SBDC/2001/20
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.563067 51.570514,-0.563068 51.570523,-0.563072 51.570531,-0.563079 51.570539,-0.563088 51.570546,-0.563098 51.570552,-0.563111 51.570556,-0.563124 51.570559,-0.563138 51.570560,-0.563166 51.570557,-0.563190 51.570548,-0.563199 51.570541,-0.563206 51.570533,-0.563211 51.570525,-0.563212 51.570516,-0.563211 51.570507,-0.563207 51.570498,-0.563201 51.570491,-0.563192 51.570484,-0.563181 51.570478,-0.563169 51.570474,-0.563141 51.570470,-0.563127 51.570470,-0.563113 51.570473,-0.563090 51.570482,-0.563080 51.570489,-0.563073 51.570497,-0.563069 51.570505,-0.563067 51.570514)))
point: POINT (-0.56314 51.570515)
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.