Tree preservation zone

There is a problem

tree-preservation-order column must match the reference field in the tree protection order dataset

reference: 88/00095/TPO
name: The Blck Country Development Corporation Tree Preservation Order Sandwell No 1 1989 The Black Countr
tree-preservation-order: undefined
88/00095/TPO
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.973929 52.499540,-1.973976 52.499548,-1.973983 52.499526,-1.973915 52.499450,-1.973722 52.499331,-1.973430 52.499104,-1.973382 52.499078,-1.973313 52.499077,-1.973255 52.499104,-1.973002 52.499292,-1.972996 52.499321,-1.973006 52.499323,-1.973060 52.499302,-1.973266 52.499134,-1.973297 52.499118,-1.973340 52.499117,-1.973392 52.499144,-1.973555 52.499261,-1.973640 52.499331,-1.973702 52.499369,-1.973929 52.499540)),((-1.974693 52.500263,-1.974716 52.500261,-1.974726 52.500250,-1.974717 52.500226,-1.974661 52.500183,-1.974605 52.500123,-1.974445 52.499940,-1.974425 52.499906,-1.974347 52.499842,-1.974252 52.499746,-1.974203 52.499714,-1.974159 52.499699,-1.974141 52.499709,-1.974164 52.499745,-1.974396 52.499936,-1.974451 52.500007,-1.974512 52.500059,-1.974598 52.500168,-1.974693 52.500263)))
point: POINT (-1.973855 52.499527)
notes
organisation
entry-date: 2004-09-21
start-date: 1989-01-01
end-date

Your dataset is missing the tree-preservation-order column.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.