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: 90/00580/C/2
name: Sapling Grove, Scarr Bottom, Halifax
tree-preservation-order: undefined
90/00580/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.883081 53.710454,-1.883111 53.710453,-1.883122 53.710439,-1.882975 53.710318,-1.882959 53.710316,-1.882941 53.710327,-1.882944 53.710341,-1.883081 53.710454)),((-1.882857 53.710106,-1.882796 53.710145,-1.882845 53.710188,-1.882992 53.710211,-1.883157 53.710249,-1.883259 53.710290,-1.883537 53.710428,-1.883633 53.710376,-1.883270 53.710184,-1.882857 53.710106)),((-1.883156 53.710508,-1.883166 53.710517,-1.883186 53.710510,-1.883171 53.710499,-1.883156 53.710508)),((-1.883141 53.710490,-1.883151 53.710499,-1.883171 53.710492,-1.883156 53.710481,-1.883141 53.710490)),((-1.883141 53.710454,-1.883151 53.710463,-1.883171 53.710456,-1.883156 53.710445,-1.883141 53.710454)),((-1.882627 53.710121,-1.882637 53.710130,-1.882657 53.710123,-1.882642 53.710112,-1.882627 53.710121)))
point: POINT (-1.883207 53.710263)
notes: Sycamore
entry-date: 1991-01-30
start-date: 1991-01-30
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.