Tree preservation zone

There is a problem

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

reference: 03/01231/C
name: Land rear of Lower Newlands, Brighouse.
tree-preservation-order: undefined
03/01231/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.775092 53.696457,-1.775135 53.696499,-1.775421 53.696468,-1.775577 53.696443,-1.775739 53.696409,-1.775783 53.696395,-1.775825 53.696367,-1.775857 53.696341,-1.775879 53.696320,-1.775879 53.696305,-1.775789 53.696342,-1.775727 53.696365,-1.775633 53.696393,-1.775516 53.696404,-1.775174 53.696445,-1.775092 53.696457)),((-1.775314 53.696666,-1.775316 53.696671,-1.775324 53.696675,-1.775335 53.696675,-1.775343 53.696671,-1.775345 53.696668,-1.775343 53.696662,-1.775337 53.696658,-1.775332 53.696657,-1.775320 53.696659,-1.775315 53.696663,-1.775314 53.696666)))
point: POINT (-1.775475 53.696429)
notes: Sycamore
entry-date: 2003-11-05
start-date: 2003-11-05
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.