Tree preservation zone

There is a problem

reference: 0977
name
tree-preservation-order: 0977
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.518204 51.612084,-2.518450 51.612273,-2.518778 51.612540,-2.518934 51.612409,-2.519010 51.612329,-2.519024 51.612302,-2.518995 51.612278,-2.519014 51.612272,-2.519085 51.612215,-2.519099 51.612192,-2.519156 51.612188,-2.519374 51.612074,-2.519360 51.612054,-2.519415 51.611839,-2.519400 51.611792,-2.519414 51.611783,-2.518686 51.611170,-2.518353 51.610872,-2.517967 51.610987,-2.517772 51.611062,-2.517297 51.611290,-2.517260 51.611326,-2.517793 51.611600,-2.517874 51.611644,-2.517870 51.611656,-2.517734 51.611847,-2.517312 51.612117,-2.517148 51.612052,-2.516907 51.612243,-2.516965 51.612270,-2.516889 51.612324,-2.517043 51.612409,-2.517234 51.612438,-2.517367 51.612338,-2.517665 51.612161,-2.518065 51.611975,-2.518204 51.612084)),((-2.519405 51.612427,-2.519414 51.612433,-2.519414 51.612421,-2.519405 51.612427)))
point: POINT (-2.518311 51.611717)
notes
organisation
entry-date: 2025-06-12
start-date: start-date must be a real date
end-date

Your dataset is missing the start-date column.

The Tree preservation zone guidance explains how to fix the issue:

The date that the tree preservation order came into force, written in YYYY-MM-DD format.

Example: 1984-03-28