Tree preservation zone

There is a problem

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

reference: TPO242.A1
name: North end of Olive Mount playing fields.
tree-preservation-order: undefined
TPO242
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.906596 53.401597,-2.906598 53.401657,-2.906604 53.401693,-2.906615 53.401732,-2.906621 53.401745,-2.906649 53.401785,-2.906696 53.401846,-2.906727 53.401890,-2.906898 53.402118,-2.907091 53.402382,-2.907145 53.402376,-2.907292 53.402567,-2.907350 53.402646,-2.907430 53.402746,-2.907460 53.402778,-2.907631 53.402908,-2.907836 53.403041,-2.907943 53.403117,-2.908136 53.403279,-2.908247 53.403377,-2.908467 53.403563,-2.908634 53.403523,-2.908880 53.403468,-2.909391 53.403375,-2.909576 53.403345,-2.909154 53.402440,-2.909021 53.402160,-2.908991 53.402091,-2.909018 53.402085,-2.908934 53.401888,-2.908846 53.401677,-2.908759 53.401461,-2.908702 53.401328,-2.906596 53.401597)))
point: POINT (-2.908181 53.40237)
notes: The several tree of whatever species situated within area A1 on map.
entry-date: 1994-06-03
start-date: 1994-09-20
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.