Tree preservation zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: 120
name
tree-preservation-order: undefined
Dorchester Mews, 2-10 Elm Road, 139-143 Kingston Road New Malden
tree-preservation-zone-type: T
geometry: MULTIPOLYGON (((-0.265991 51.401048,-0.266017 51.400980,-0.265499 51.400830,-0.265488 51.400828,-0.265453 51.400826,-0.265437 51.400828,-0.265419 51.400832,-0.265399 51.400840,-0.265381 51.400850,-0.265370 51.400858,-0.265366 51.400863,-0.265360 51.400875,-0.265358 51.400888,-0.265361 51.400987,-0.265370 51.400988,-0.265372 51.401026,-0.265361 51.401040,-0.265363 51.401195,-0.265366 51.401259,-0.265374 51.401266,-0.265377 51.401330,-0.265366 51.401338,-0.265367 51.401369,-0.265372 51.401369,-0.265369 51.401424,-0.265447 51.401425,-0.265448 51.401445,-0.265478 51.401444,-0.265478 51.401432,-0.265527 51.401431,-0.265568 51.401431,-0.265568 51.401443,-0.265616 51.401443,-0.265615 51.401441,-0.265780 51.401441,-0.265791 51.401421,-0.265791 51.401332,-0.266001 51.401330,-0.266003 51.401292,-0.266001 51.401257,-0.265980 51.401202,-0.265965 51.401155,-0.265978 51.401112,-0.265991 51.401048)))
point: POINT (-0.265649 51.401144)
notes
entry-date: 2018-12-18
start-date
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.