Tree preservation zone

There is a problem

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

reference: ICEWXADNBB000
name: The Ridgeway, Westbury-on-Trym
tree-preservation-order: undefined
152
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-2.618092 51.502039,-2.617959 51.502068,-2.617967 51.502114,-2.617977 51.502124,-2.618007 51.502132,-2.618101 51.502121,-2.618191 51.502103,-2.618232 51.502076,-2.618232 51.502063,-2.618206 51.502033,-2.618166 51.502028,-2.618092 51.502039),(-2.618065 51.502088,-2.618062 51.502089,-2.618061 51.502087,-2.618064 51.502087,-2.618065 51.502088),(-2.618176 51.502073,-2.618173 51.502074,-2.618173 51.502072,-2.618176 51.502072,-2.618176 51.502073),(-2.618121 51.502079,-2.618118 51.502080,-2.618117 51.502078,-2.618120 51.502078,-2.618121 51.502079),(-2.618011 51.502092,-2.618011 51.502093,-2.618008 51.502093,-2.618008 51.502091,-2.618011 51.502092)),((-2.617825 51.502069,-2.617754 51.502092,-2.617731 51.502128,-2.617739 51.502149,-2.617755 51.502163,-2.617773 51.502164,-2.617863 51.502161,-2.617877 51.502154,-2.617889 51.502142,-2.617892 51.502125,-2.617880 51.502088,-2.617837 51.502067,-2.617825 51.502069),(-2.617776 51.502126,-2.617774 51.502127,-2.617773 51.502125,-2.617776 51.502125,-2.617776 51.502126),(-2.617824 51.502117,-2.617824 51.502118,-2.617821 51.502118,-2.617821 51.502116,-2.617824 51.502117)))
point: POINT (-2.617988 51.502096)
notes: HORSE CHESTNUT - Aesculus hippocastanum
organisation
entry-date: 2011-10-13
start-date: 2011-10-13
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.