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: ZZZZZXESRW235
name: South Bucks District Council (No. 3) Tree Preservation Order 1990; dated 6/3/90; made under Sections
tree-preservation-order: undefined
TPO/SBDC/1990/03
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.617687 51.554991,-0.617695 51.554804,-0.617699 51.554769,-0.617689 51.554742,-0.617671 51.554731,-0.617650 51.554722,-0.617627 51.554715,-0.617602 51.554710,-0.617577 51.554708,-0.617551 51.554709,-0.617526 51.554712,-0.617502 51.554718,-0.617460 51.554737,-0.617444 51.554749,-0.617431 51.554763,-0.617422 51.554778,-0.617416 51.554794,-0.617416 51.554810,-0.617419 51.554826,-0.617427 51.554841,-0.617503 51.555020,-0.617510 51.555030,-0.617531 51.555046,-0.617544 51.555052,-0.617559 51.555056,-0.617575 51.555059,-0.617592 51.555060,-0.617625 51.555056,-0.617640 51.555052,-0.617653 51.555046,-0.617675 51.555031,-0.617682 51.555021,-0.617686 51.555011,-0.617688 51.555001,-0.617687 51.554991)))
point: POINT (-0.617571 51.554873)
notes
entry-date: 2017-07-04
start-date: 2017-07-04
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.