Tree preservation zone

There is a problem

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

reference: TPO220.A1
name: Allerton Beeches
tree-preservation-order: undefined
TPO220
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.900873 53.379632,-2.900990 53.379681,-2.900952 53.379692,-2.900933 53.379693,-2.901028 53.379743,-2.901029 53.379732,-2.901037 53.379717,-2.901091 53.379746,-2.901298 53.379844,-2.901339 53.379804,-2.901400 53.379831,-2.901357 53.379872,-2.901496 53.379936,-2.901712 53.380040,-2.901728 53.380045,-2.901740 53.380046,-2.901750 53.380045,-2.901773 53.380039,-2.901779 53.380039,-2.901787 53.380042,-2.901830 53.380064,-2.901835 53.380068,-2.901838 53.380075,-2.901841 53.380093,-2.901845 53.380098,-2.901854 53.380104,-2.902291 53.379719,-2.902432 53.379593,-2.902290 53.379286,-2.902245 53.379184,-2.902179 53.379041,-2.902254 53.378970,-2.902434 53.378810,-2.902026 53.378760,-2.901946 53.378747,-2.901842 53.378728,-2.901792 53.378717,-2.901587 53.378667,-2.901562 53.378660,-2.901509 53.378638,-2.901375 53.378568,-2.901315 53.378541,-2.901275 53.378526,-2.901227 53.378503,-2.901053 53.378441,-2.900860 53.378369,-2.900816 53.378362,-2.900755 53.378349,-2.900708 53.378336,-2.899855 53.379163,-2.900418 53.379426,-2.900553 53.379491,-2.900864 53.379637,-2.900873 53.379632)))
point: POINT (-2.901271 53.379186)
notes: The several tree of whatever species situated within area A1 on map.
entry-date: 1990-04-10
start-date: 1990-06-25
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.