Tree preservation zone

There is a problem

reference: 210
name
tree-preservation-order: Multiple Addresses In The New Malden Area
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.261025 51.416134,-0.261027 51.416120,-0.261020 51.416108,-0.261008 51.416076,-0.260942 51.415951,-0.260848 51.415792,-0.260656 51.415534,-0.260596 51.415444,-0.260463 51.415140,-0.260017 51.415166,-0.259282 51.415223,-0.259286 51.415231,-0.259300 51.415241,-0.259306 51.415254,-0.259322 51.415264,-0.259325 51.415279,-0.259343 51.415291,-0.259350 51.415315,-0.259360 51.415314,-0.259499 51.415520,-0.259504 51.415547,-0.259885 51.415551,-0.259914 51.415791,-0.259926 51.415874,-0.259956 51.416143,-0.259968 51.416223,-0.260360 51.416220,-0.260369 51.416209,-0.260434 51.416207,-0.260453 51.416219,-0.260530 51.416219,-0.260962 51.416180,-0.260973 51.416177,-0.261010 51.416158,-0.261023 51.416148,-0.261025 51.416134)))
point: POINT (-0.260239 51.415678)
notes
entry-date: 2018-12-18
start-date: start-date must be a real date
end-date

Your data is missing a start-date.

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