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: 1990/004.G1
name: Former Wills Factory
tree-preservation-order: undefined
1990/004
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.559744 54.998285,-1.559783 54.998295,-1.559799 54.998293,-1.559811 54.998287,-1.559815 54.998277,-1.559808 54.998261,-1.559748 54.998190,-1.559738 54.998173,-1.559730 54.998131,-1.559731 54.998092,-1.559753 54.998067,-1.559766 54.998048,-1.559773 54.998032,-1.559778 54.998011,-1.559774 54.997985,-1.559765 54.997972,-1.559747 54.997956,-1.559727 54.997951,-1.559701 54.997950,-1.559669 54.997959,-1.559632 54.997975,-1.559575 54.998011,-1.559461 54.998102,-1.559450 54.998119,-1.559457 54.998131,-1.559489 54.998141,-1.559532 54.998147,-1.559559 54.998153,-1.559604 54.998178,-1.559694 54.998236,-1.559744 54.998285)))
point: POINT (-1.559656 54.998103)
notes: These data are update live via a feed to NCC's Tree Managament System, EzyTreev
entry-date: 2022-07-01
start-date: 1990-01-01
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.