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: ZZZZZXESRW151
name: South Bucks District Council (No. 33) Tree Preservation Order 1995; dated 6/6/95; made under Section
tree-preservation-order: undefined
TPO/SBDC/1995/33
tree-preservation-zone-type
geometry: MULTIPOLYGON (((-0.652929 51.535820,-0.652942 51.535819,-0.652960 51.535815,-0.652977 51.535797,-0.652990 51.535776,-0.652995 51.535746,-0.653002 51.535733,-0.653024 51.535709,-0.653030 51.535689,-0.653030 51.535677,-0.653024 51.535664,-0.653007 51.535656,-0.652976 51.535647,-0.652922 51.535637,-0.652867 51.535633,-0.652825 51.535632,-0.652783 51.535637,-0.652755 51.535673,-0.652742 51.535703,-0.652741 51.535748,-0.652757 51.535775,-0.652785 51.535809,-0.652821 51.535822,-0.652872 51.535825,-0.652929 51.535820)),((-0.652205 51.535726,-0.652228 51.535710,-0.652264 51.535694,-0.652288 51.535691,-0.652302 51.535687,-0.652310 51.535678,-0.652313 51.535657,-0.652313 51.535649,-0.652305 51.535636,-0.652250 51.535630,-0.652177 51.535630,-0.652147 51.535633,-0.652130 51.535641,-0.652117 51.535651,-0.652110 51.535665,-0.652093 51.535692,-0.652088 51.535705,-0.652086 51.535725,-0.652089 51.535732,-0.652101 51.535739,-0.652115 51.535745,-0.652135 51.535746,-0.652168 51.535745,-0.652190 51.535737,-0.652205 51.535726)))
point: POINT (-0.652677 51.535712)
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.