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: 1/76/61-183
name: 16 Individual 3 Areas
tree-preservation-order: undefined
1/76/61-183
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((0.408178 51.893682,0.408133 51.893682,0.408103 51.893680,0.408088 51.893677,0.408040 51.893675,0.407991 51.893666,0.407934 51.893649,0.407703 51.893572,0.407693 51.893567,0.407661 51.893541,0.407641 51.893510,0.407637 51.893487,0.407627 51.893465,0.407619 51.893411,0.407631 51.893348,0.407635 51.893319,0.407660 51.893239,0.407687 51.893192,0.407719 51.893160,0.407742 51.893141,0.407786 51.893118,0.407839 51.893096,0.407968 51.893057,0.408039 51.893050,0.408114 51.893049,0.408139 51.893050,0.408186 51.893055,0.408261 51.893068,0.408329 51.893087,0.408372 51.893104,0.408407 51.893121,0.408473 51.893162,0.408488 51.893172,0.408534 51.893212,0.408554 51.893237,0.408570 51.893263,0.408581 51.893287,0.408593 51.893332,0.408595 51.893362,0.408589 51.893407,0.408577 51.893446,0.408550 51.893495,0.408538 51.893511,0.408526 51.893526,0.408504 51.893549,0.408474 51.893574,0.408459 51.893585,0.408404 51.893617,0.408326 51.893650,0.408280 51.893664,0.408245 51.893673,0.408178 51.893682)))
point: POINT (0.408103 51.893365)
notes
entry-date: 1976-10-26
start-date: 1976-10-26
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.