Tree preservation zone

There is a problem

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

reference: TPO210
name: 34 The Dell
tree-preservation-order: undefined
Bonby 1972
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-0.480960 53.628448,-0.481006 53.628432,-0.481066 53.628393,-0.481382 53.628198,-0.481590 53.628079,-0.481834 53.627948,-0.482039 53.627854,-0.482405 53.627701,-0.482525 53.627644,-0.482564 53.627622,-0.482588 53.627603,-0.482608 53.627583,-0.482623 53.627564,-0.482681 53.627379,-0.482700 53.627285,-0.482717 53.627211,-0.482731 53.627170,-0.482739 53.627134,-0.482725 53.627098,-0.482659 53.627043,-0.482533 53.626942,-0.482433 53.626985,-0.482362 53.627070,-0.482328 53.627151,-0.482265 53.627223,-0.482127 53.627271,-0.481880 53.627362,-0.481701 53.627473,-0.481554 53.627552,-0.481285 53.627639,-0.481050 53.627632,-0.480900 53.627576,-0.480811 53.627511,-0.480720 53.627515,-0.480612 53.627554,-0.480535 53.627571,-0.480469 53.627589,-0.480461 53.627621,-0.480453 53.627638,-0.480439 53.627660,-0.480412 53.627695,-0.480349 53.627748,-0.480126 53.627894,-0.480056 53.627952,-0.480038 53.627970,-0.480031 53.627981,-0.480022 53.628009,-0.480025 53.628038,-0.480041 53.628085,-0.480071 53.628188,-0.480084 53.628265,-0.480092 53.628286,-0.480308 53.628641,-0.480837 53.628498,-0.480898 53.628478,-0.480960 53.628448)))
point: POINT (-0.48127 53.627853)
notes
entry-date: 1972-11-03
start-date: 1972-09-07
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.