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: 1975/020.G1
name: West Denton Road, Tel Ex
tree-preservation-order: undefined
1975/020
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.709833 54.985400,-1.709825 54.985380,-1.709814 54.985365,-1.709797 54.985335,-1.709774 54.985311,-1.709738 54.985298,-1.709690 54.985290,-1.709648 54.985292,-1.709625 54.985296,-1.709589 54.985312,-1.709513 54.985340,-1.709453 54.985354,-1.709373 54.985376,-1.709165 54.985418,-1.708974 54.985453,-1.708728 54.985502,-1.708577 54.985536,-1.708525 54.985564,-1.708514 54.985594,-1.708531 54.985627,-1.708563 54.985657,-1.708639 54.985685,-1.708725 54.985688,-1.708833 54.985674,-1.709072 54.985624,-1.709286 54.985582,-1.709534 54.985539,-1.709693 54.985506,-1.709758 54.985485,-1.709796 54.985467,-1.709821 54.985446,-1.709832 54.985428,-1.709833 54.985400)))
point: POINT (-1.709198 54.985502)
notes: These data are update live via a feed to NCC's Tree Managament System, EzyTreev
entry-date: 2022-07-01
start-date: 1975-01-01
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.