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: ZZZZDVESXE727
name: The Bucks County Council (Amersham Rural District) Tree Preservation Order No 10 - 1949 Confirmed by
tree-preservation-order: undefined
TPO/1949/010
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.729411 51.694520,-0.729427 51.694521,-0.729505 51.694501,-0.729586 51.694477,-0.729453 51.694183,-0.729197 51.693823,-0.728936 51.693510,-0.728793 51.693363,-0.728576 51.693203,-0.728334 51.693310,-0.728462 51.693385,-0.728539 51.693437,-0.728628 51.693508,-0.728706 51.693577,-0.728768 51.693639,-0.728842 51.693721,-0.728866 51.693751,-0.728918 51.693805,-0.728929 51.693821,-0.728932 51.693830,-0.728951 51.693861,-0.728966 51.693883,-0.729004 51.693927,-0.729018 51.693938,-0.729047 51.693966,-0.729077 51.693986,-0.729119 51.694025,-0.729175 51.694163,-0.729260 51.694358,-0.729314 51.694463,-0.729328 51.694483,-0.729338 51.694492,-0.729354 51.694502,-0.729371 51.694510,-0.729411 51.694520)))
point: POINT (-0.729034 51.693843)
notes
entry-date: 2010-02-18
start-date: 2010-02-18
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.