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: IB6F2KDNBB000
name: Henleaze Infants School Park Grove Bristol BS9 4LG
tree-preservation-order: undefined
442
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-2.605051 51.485168,-2.605095 51.485181,-2.605112 51.485192,-2.605122 51.485216,-2.605169 51.485239,-2.605201 51.485234,-2.605223 51.485221,-2.605247 51.485187,-2.605248 51.485174,-2.605236 51.485141,-2.605197 51.485123,-2.605139 51.485151,-2.605065 51.485141,-2.605042 51.485113,-2.605031 51.485071,-2.604995 51.485046,-2.604958 51.485043,-2.604790 51.484993,-2.604766 51.484990,-2.604725 51.485005,-2.604695 51.485034,-2.604692 51.485056,-2.604715 51.485111,-2.604745 51.485106,-2.604787 51.485114,-2.604817 51.485102,-2.604847 51.485104,-2.604878 51.485130,-2.604897 51.485161,-2.604929 51.485181,-2.604951 51.485180,-2.604965 51.485190,-2.605022 51.485169,-2.605051 51.485168)))
point: POINT (-2.604951 51.485108)
notes: HOLLY - Ilex aquifolium,LAWSON CYPRESS - Chamaecyparis lawsoniana,SYCAMORE - Acer pseudoplatanus,YEW - Taxus baccata
organisation
entry-date: 2005-01-31
start-date: 2005-01-31
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.