Tree preservation zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: tpo15
name: Brandesburton Park (North) - 1989
tree-preservation-order: undefined
384
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.307242 53.913218,-0.307017 53.913001,-0.306905 53.912917,-0.306846 53.912895,-0.305727 53.912860,-0.302858 53.912712,-0.302637 53.912708,-0.302501 53.912739,-0.302393 53.912829,-0.302339 53.912900,-0.302291 53.913000,-0.302181 53.913352,-0.301963 53.913850,-0.301894 53.914058,-0.301945 53.914386,-0.301980 53.915002,-0.302008 53.915188,-0.301966 53.915342,-0.301898 53.915662,-0.301796 53.916077,-0.301720 53.916329,-0.301676 53.916542,-0.302092 53.916537,-0.302103 53.916067,-0.302980 53.916064,-0.302974 53.916547,-0.305075 53.916608,-0.305445 53.916200,-0.306674 53.914986,-0.307708 53.914979,-0.307822 53.914833,-0.307843 53.914696,-0.307845 53.914495,-0.307808 53.914109,-0.307772 53.913885,-0.307737 53.913772,-0.307699 53.913696,-0.307661 53.913641,-0.307495 53.913466,-0.307242 53.913218)))
point: POINT (-0.304537 53.914517)
notes
entry-date: 1989-01-03
start-date: 1989-01-03
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.