Tree preservation zone

There is a problem

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

reference: T2/E/G45
name: Lancashire County Council Tree Preservation Order 1954 No.4 - Group consisting of 7 Sycamore, 3 Lime, 2 Ash
tree-preservation-order: undefined
T2-E
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-2.288867 53.712050,-2.288874 53.712054,-2.288887 53.712056,-2.288935 53.712056,-2.289002 53.712050,-2.289045 53.712044,-2.289098 53.712035,-2.289161 53.712021,-2.289202 53.712008,-2.289210 53.712003,-2.289212 53.711997,-2.289206 53.711994,-2.289195 53.711992,-2.289172 53.711991,-2.289149 53.711992,-2.289102 53.711995,-2.289018 53.712006,-2.288947 53.712020,-2.288900 53.712032,-2.288884 53.712037,-2.288870 53.712044,-2.288867 53.712047,-2.288867 53.712050)))
point: POINT (-2.28904 53.712024)
notes: Information not updated since the Order was confirmed
entry-date: 2025-02-25
start-date: 1954-11-03
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.