Tree preservation zone

There is a problem

tree-preservation-order column must match the reference field in the tree preservation order dataset

reference: TPO137
name
tree-preservation-order: undefined
Beechwood House, Broughton 1979
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-0.548413 53.563167,-0.548664 53.563170,-0.549037 53.563230,-0.549152 53.563254,-0.549609 53.563411,-0.549748 53.563412,-0.549989 53.563343,-0.550149 53.563310,-0.550386 53.563276,-0.550532 53.563270,-0.550702 53.563287,-0.550791 53.563324,-0.550848 53.563380,-0.550856 53.563402,-0.550905 53.563439,-0.550910 53.563665,-0.550905 53.563698,-0.550868 53.563712,-0.550824 53.563716,-0.550442 53.563720,-0.550463 53.563826,-0.550457 53.563842,-0.550435 53.563853,-0.550450 53.564025,-0.550537 53.564030,-0.550537 53.564037,-0.550611 53.564036,-0.550613 53.564070,-0.551113 53.564065,-0.551110 53.563793,-0.551184 53.563792,-0.551193 53.563530,-0.551124 53.563461,-0.551130 53.563034,-0.548676 53.563080,-0.548344 53.563009,-0.548413 53.563167)))
point: POINT (-0.550248 53.563386)
notes
entry-date: 1979-04-25
start-date: 1979-01-25
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.