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: 1/77/04-174
name: 16 Individual Trees 4 Groups 5 Areas
tree-preservation-order: undefined
1/77/04-174
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((0.189649 51.895435,0.189760 51.895466,0.190012 51.895559,0.190356 51.895760,0.190520 51.895885,0.190601 51.895944,0.190913 51.896142,0.191196 51.896319,0.191565 51.896507,0.191781 51.896620,0.191845 51.896667,0.191881 51.896699,0.191994 51.896810,0.191998 51.896896,0.191947 51.896855,0.191916 51.896824,0.191904 51.896814,0.191866 51.896786,0.191833 51.896765,0.191806 51.896750,0.191785 51.896740,0.191728 51.896717,0.191606 51.896674,0.191565 51.896658,0.191466 51.896614,0.191407 51.896581,0.191103 51.896422,0.190643 51.896161,0.190605 51.896138,0.190591 51.896128,0.190566 51.896106,0.190555 51.896086,0.190550 51.896057,0.190539 51.896037,0.190513 51.896013,0.190446 51.895964,0.190328 51.895907,0.190226 51.895867,0.190183 51.895844,0.190034 51.895754,0.189992 51.895733,0.189904 51.895694,0.189806 51.895655,0.189679 51.895597,0.189594 51.895550,0.189461 51.895471,0.189420 51.895449,0.189399 51.895409,0.189537 51.895402,0.189649 51.895435)))
point: POINT (0.190675 51.896069)
notes
entry-date: 1977-03-31
start-date: 1977-03-31
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.