Tree preservation zone

There is a problem

tree-preservation-order column must match the reference field in the tree preservation order dataset

reference: 2/1995/TAN A1
name: St. Lawrences Hospital Coulsdon Road Caterham
tree-preservation-order: undefined
2/1995/TAN
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.098490 51.287920,-0.098594 51.288073,-0.098705 51.288261,-0.098969 51.288592,-0.099591 51.288415,-0.102291 51.287616,-0.103535 51.287261,-0.103004 51.286690,-0.102649 51.286287,-0.102303 51.285858,-0.101480 51.284764,-0.101526 51.284749,-0.101308 51.284363,-0.100656 51.283630,-0.101192 51.283425,-0.100602 51.282661,-0.099808 51.283066,-0.100036 51.283228,-0.100135 51.283242,-0.100358 51.283542,-0.099371 51.284010,-0.099295 51.284023,-0.098962 51.283755,-0.098920 51.283736,-0.098732 51.283582,-0.096978 51.284441,-0.096939 51.284465,-0.096893 51.284515,-0.096883 51.284547,-0.097018 51.285861,-0.097049 51.285953,-0.097144 51.286112,-0.097249 51.286262,-0.098096 51.287436,-0.098233 51.287623,-0.098368 51.287771,-0.098490 51.287920)))
point: POINT (-0.099842 51.285932)
notes
organisation
entry-date: 1995-01-05
start-date: 1995-01-05
end-date

Your dataset is missing the tree-preservation-order column.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.