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: ZZZZZXESRW032
name: South Bucks District Council (No. 25) Tree Preservation Order 1995; dated 31/5/95; made under Sectio
tree-preservation-order: undefined
TPO/SBDC/1995/25
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.565814 51.580147,-0.565854 51.580145,-0.565893 51.580139,-0.565930 51.580129,-0.565964 51.580115,-0.565993 51.580097,-0.566017 51.580077,-0.566035 51.580055,-0.566046 51.580030,-0.566050 51.580005,-0.566048 51.579980,-0.566038 51.579956,-0.566022 51.579933,-0.565999 51.579912,-0.565971 51.579893,-0.565938 51.579879,-0.565902 51.579867,-0.565863 51.579861,-0.565823 51.579858,-0.565783 51.579860,-0.565743 51.579866,-0.565706 51.579876,-0.565673 51.579890,-0.565643 51.579907,-0.565620 51.579928,-0.565602 51.579950,-0.565591 51.579974,-0.565586 51.580000,-0.565589 51.580025,-0.565599 51.580049,-0.565615 51.580072,-0.565638 51.580093,-0.565666 51.580111,-0.565698 51.580126,-0.565735 51.580137,-0.565774 51.580144,-0.565814 51.580147)))
point: POINT (-0.565818 51.580002)
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.