Tree preservation zone

There is a problem

184 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: 90/00545/C
name: Land off Portland road, Halifax
tree-preservation-order: undefined
90/00545/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.856284 53.728863,-1.856289 53.728882,-1.856320 53.728894,-1.856581 53.728880,-1.856653 53.728883,-1.856791 53.728904,-1.856904 53.728939,-1.857012 53.728990,-1.857083 53.729043,-1.857134 53.729112,-1.857172 53.729195,-1.857178 53.729261,-1.857172 53.729331,-1.857150 53.729410,-1.857126 53.729458,-1.857031 53.729601,-1.856958 53.729671,-1.857026 53.729701,-1.857388 53.729353,-1.857599 53.729142,-1.857670 53.729060,-1.856640 53.728608,-1.856284 53.728863)),((-1.855792 53.729093,-1.855810 53.729102,-1.855822 53.729091,-1.855802 53.729084,-1.855792 53.729093)),((-1.856109 53.729309,-1.856122 53.729318,-1.856140 53.729311,-1.856127 53.729300,-1.856109 53.729309)))
point: POINT (-1.857067 53.729029)
notes: Willow, sycamore
entry-date: 1990-09-26
start-date: 1990-09-26
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.