X_PERSONAL_DATA_UNERASED
Means
a subject erase would leave a personalData() column of a reached table
Typical cause
defineSubject gives a table it reaches { anonymize } without naming every personalData() column, so the erase leaves the person's value there
Fix
tables: { <table>: { anonymize: { <column>: null } } } — in defineSubject(<subject>, …): name every personalData() column, or 'delete', or { retain: '<why>' }