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: ZZZZZTESRW148
name: South Bucks District Council (No. 22) Tree Preservation Order 1993; dated 21/12/93; made under Secti
tree-preservation-order: undefined
TPO/SBDC/1993/22
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.654928 51.604021,-0.654936 51.604010,-0.654940 51.604000,-0.654941 51.603988,-0.654939 51.603975,-0.654933 51.603963,-0.654920 51.603946,-0.654904 51.603932,-0.654878 51.603914,-0.654847 51.603900,-0.654826 51.603893,-0.654808 51.603889,-0.654789 51.603888,-0.654766 51.603889,-0.654741 51.603893,-0.654722 51.603900,-0.654708 51.603910,-0.654698 51.603920,-0.654693 51.603931,-0.654694 51.603949,-0.654700 51.603966,-0.654709 51.603979,-0.654749 51.604012,-0.654775 51.604030,-0.654795 51.604039,-0.654817 51.604045,-0.654841 51.604048,-0.654865 51.604047,-0.654887 51.604042,-0.654916 51.604031,-0.654928 51.604021)))
point: POINT (-0.654818 51.603967)
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.