After install (and reinstall), I get this error:

PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'psychadvocacy_drupal.vocabulary' doesn't exist: SELECT v.vid, v.name FROM {vocabulary} v WHERE module='taxonomy'; Array ( ) in _yahoo_terms_vocab_select() (line 579 of /var/psychadvocacy/sites/all/modules/yahoo_terms/yahoo_terms.module).