Tree preservation zone

There is a problem

reference: 0871
name
tree-preservation-order: 0871
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.521783 51.612044,-2.521921 51.611957,-2.522423 51.611604,-2.523069 51.611119,-2.522531 51.610856,-2.522434 51.610845,-2.522409 51.610832,-2.522391 51.610841,-2.522365 51.610830,-2.522379 51.610798,-2.522115 51.610745,-2.521928 51.610696,-2.521834 51.610650,-2.521729 51.610581,-2.521671 51.610514,-2.521552 51.610275,-2.521530 51.610046,-2.521531 51.609727,-2.521576 51.609432,-2.521190 51.609132,-2.520734 51.609294,-2.520496 51.609366,-2.520215 51.609466,-2.520015 51.609583,-2.519902 51.609715,-2.519850 51.609789,-2.519660 51.609898,-2.519943 51.610004,-2.520030 51.610066,-2.520051 51.610191,-2.520104 51.610253,-2.520213 51.610344,-2.520215 51.610501,-2.520071 51.610520,-2.520258 51.610972,-2.520522 51.611448,-2.521033 51.611377,-2.521363 51.611727,-2.521441 51.611837,-2.521431 51.611858,-2.521783 51.612044)))
point: POINT (-2.521219 51.610616)
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