Tree preservation zone

There is a problem

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

reference: TPO281
name
tree-preservation-order: undefined
Burton upon Stather 1961
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-0.685437 53.652047,-0.685533 53.652048,-0.685691 53.652045,-0.685831 53.652026,-0.685981 53.652001,-0.686043 53.651966,-0.686051 53.651953,-0.686045 53.651939,-0.686061 53.651923,-0.686080 53.651878,-0.686073 53.651839,-0.686066 53.651825,-0.686063 53.651797,-0.686016 53.651716,-0.685937 53.651705,-0.685876 53.651704,-0.685814 53.651724,-0.685778 53.651766,-0.685768 53.651802,-0.685705 53.651863,-0.685688 53.651876,-0.685660 53.651894,-0.685573 53.651914,-0.685467 53.651928,-0.685423 53.651949,-0.685430 53.651990,-0.685437 53.652047)))
point: POINT (-0.685801 53.651903)
notes
entry-date: 1961-03-20
start-date: 1961-01-23
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.