Tree preservation zone

There is a problem

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

reference: TPO236
name: In OS 1113
tree-preservation-order: undefined
Elsham 1972
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-0.428392 53.613808,-0.428332 53.613728,-0.428293 53.613669,-0.428261 53.613615,-0.428215 53.613525,-0.428207 53.613501,-0.428192 53.613468,-0.428183 53.613443,-0.428147 53.613338,-0.428117 53.613243,-0.428097 53.613192,-0.428095 53.613179,-0.428071 53.613108,-0.428054 53.613038,-0.428031 53.613004,-0.428007 53.612961,-0.427893 53.612870,-0.427685 53.612970,-0.427400 53.612762,-0.427253 53.612829,-0.427107 53.612900,-0.427004 53.612962,-0.426984 53.612998,-0.427031 53.613031,-0.427191 53.613003,-0.427242 53.612990,-0.427326 53.612991,-0.427361 53.613032,-0.427403 53.613115,-0.427391 53.613251,-0.427269 53.613425,-0.427124 53.613548,-0.427108 53.613582,-0.427129 53.613618,-0.427238 53.613700,-0.427514 53.613869,-0.427621 53.613910,-0.427699 53.613915,-0.427802 53.613893,-0.427850 53.613876,-0.427935 53.613852,-0.427976 53.613844,-0.428078 53.613828,-0.428106 53.613824,-0.428249 53.613813,-0.428392 53.613808)))
point: POINT (-0.427699 53.613392)
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.