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: 1996/001.A6
name: Walkergate Hospital, Main Site
tree-preservation-order: undefined
1996/001
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.561224 54.989277,-1.561228 54.989272,-1.561228 54.989266,-1.561147 54.989070,-1.561141 54.989066,-1.561130 54.989065,-1.561004 54.989102,-1.560974 54.989106,-1.560964 54.989103,-1.560957 54.989097,-1.560813 54.988931,-1.560817 54.988920,-1.560823 54.988910,-1.560833 54.988903,-1.560844 54.988896,-1.560884 54.988882,-1.560908 54.988858,-1.560923 54.988834,-1.560925 54.988812,-1.560920 54.988788,-1.560909 54.988765,-1.560886 54.988724,-1.560861 54.988690,-1.560843 54.988680,-1.560802 54.988674,-1.560776 54.988677,-1.560608 54.988711,-1.560613 54.988733,-1.560604 54.988747,-1.560596 54.988765,-1.560639 54.988830,-1.560734 54.988967,-1.560829 54.989101,-1.560963 54.989283,-1.560986 54.989289,-1.561001 54.989283,-1.561005 54.989279,-1.561016 54.989278,-1.561212 54.989279,-1.561224 54.989277)))
point: POINT (-1.560891 54.988988)
notes: These data are update live via a feed to NCC's Tree Managament System, EzyTreev
entry-date: 2022-07-01
start-date: 1996-01-01
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.