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: 101
name
tree-preservation-order: undefined
Laurel Grove and Coombe Glen Coombe Hill Road Kingston Upon Thames KT2 7DU
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-0.259164 51.419174,-0.259166 51.419161,-0.259166 51.419146,-0.259163 51.419130,-0.259156 51.419115,-0.259147 51.419101,-0.259122 51.419097,-0.259100 51.419099,-0.259089 51.419104,-0.259079 51.419114,-0.259076 51.419119,-0.259074 51.419128,-0.259082 51.419136,-0.259079 51.419143,-0.259073 51.419149,-0.259063 51.419147,-0.258992 51.419128,-0.259001 51.419105,-0.258999 51.419096,-0.258990 51.419081,-0.258963 51.419060,-0.258895 51.419031,-0.258427 51.418918,-0.258410 51.418920,-0.258400 51.418943,-0.258319 51.418930,-0.258311 51.418911,-0.258293 51.418892,-0.258002 51.418809,-0.257823 51.418762,-0.257649 51.418713,-0.257534 51.418671,-0.257522 51.418666,-0.257504 51.418654,-0.257486 51.418637,-0.257465 51.418614,-0.257455 51.418600,-0.257451 51.418590,-0.257415 51.418527,-0.257390 51.418480,-0.257381 51.418457,-0.257365 51.418451,-0.257348 51.418452,-0.257227 51.418493,-0.258125 51.419280,-0.258280 51.419418,-0.258336 51.419465,-0.258563 51.419414,-0.258753 51.419364,-0.258760 51.419374,-0.258959 51.419294,-0.259058 51.419267,-0.259079 51.419259,-0.259116 51.419238,-0.259140 51.419217,-0.259156 51.419194,-0.259164 51.419174)))
point: POINT (-0.25831 51.419074)
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.