Tree preservation zone

There is a problem

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

reference: IATS3ZDNBB000
name: Land At Westbury On Trym Cricket Club To The Rear Of Burghill Road And Grasmere Close Passage Road Westbury Bristol BS10 6TN
tree-preservation-order: undefined
487
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-2.615854 51.501616,-2.615817 51.501631,-2.615776 51.501663,-2.615773 51.501673,-2.615782 51.501690,-2.615802 51.501699,-2.615802 51.501716,-2.615759 51.501720,-2.615746 51.501740,-2.615692 51.501727,-2.615665 51.501736,-2.615647 51.501756,-2.615597 51.501710,-2.615529 51.501700,-2.615465 51.501654,-2.615434 51.501652,-2.615370 51.501605,-2.615330 51.501589,-2.615323 51.501578,-2.615242 51.501562,-2.615166 51.501567,-2.615248 51.501646,-2.615344 51.501717,-2.615346 51.501732,-2.615394 51.501751,-2.615716 51.501970,-2.615800 51.501945,-2.615888 51.501900,-2.615914 51.501864,-2.615945 51.501796,-2.615994 51.501728,-2.616016 51.501658,-2.616057 51.501628,-2.616054 51.501598,-2.616034 51.501582,-2.616034 51.501565,-2.616015 51.501551,-2.615898 51.501565,-2.615864 51.501594,-2.615854 51.501616)))
point: POINT (-2.61569 51.501747)
notes: ELM - Ulmus procera,SYCAMORE - Acer pseudoplatanus,HAWTHORN - Crataegus monogyna, LIME - Tilia x europaea
organisation
entry-date: 2005-01-24
start-date: 2005-01-24
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.