Query failed: ERROR: relation "twitter_account" does not exist

On install of Twitter modules this error occurs:

* warning: pg_query() [function.pg-query]: Query failed: ERROR: relation "twitter_account" does not exist in /home/www/html/includes/database.pgsql.inc on line 139.
* user warning: query: SELECT ta.*, tu.uid, tu.password, tu.import FROM twitter_user tu LEFT JOIN twitter_account ta ON (tu.screen_name = ta.screen_name) WHERE tu.uid = 1 AND tu.password IS NOT NULL in /home/www/html/sites/all/modules/twitter/twitter.module on line 300.

I am running Drupal 6.16
Php 5.1.6
Postgres 8.1.18