Tree preservation zone

There is a problem

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

reference: TPO211
name: Opposite Prospect Farm
tree-preservation-order: undefined
East Butterwick 1971
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-0.738086 53.549412,-0.738086 53.549425,-0.738088 53.549431,-0.738092 53.549438,-0.738102 53.549466,-0.738137 53.549551,-0.738227 53.549786,-0.738245 53.549808,-0.738256 53.549844,-0.738274 53.549876,-0.738278 53.549903,-0.738290 53.549926,-0.738355 53.549999,-0.738458 53.550130,-0.738512 53.550193,-0.738596 53.550260,-0.738605 53.550296,-0.738660 53.550355,-0.738697 53.550400,-0.738794 53.550523,-0.738826 53.550567,-0.738840 53.550583,-0.738900 53.550663,-0.738908 53.550667,-0.738933 53.550667,-0.738943 53.550655,-0.738896 53.550573,-0.738820 53.550493,-0.738712 53.550319,-0.738617 53.550222,-0.738531 53.550142,-0.738484 53.550074,-0.738418 53.549989,-0.738375 53.549930,-0.738310 53.549821,-0.738263 53.549736,-0.738246 53.549680,-0.738233 53.549604,-0.738234 53.549569,-0.738196 53.549519,-0.738169 53.549451,-0.738156 53.549378,-0.738137 53.549360,-0.738103 53.549363,-0.738087 53.549386,-0.738086 53.549412)))
point: POINT (-0.738438 53.549993)
notes
entry-date: 1972-05-15
start-date: 1972-03-23
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.