Postres-Modul Trouble_ relation ... does not exists #twitter #activity_stream

While I wanted to add an identi.ca stream to my drupalsite I got always trouble in file /usr/share/php/drupal/includes/database.pgsql.inc on line 139. I tried out several modules - the Twitter module and the activity stream module for identica. With both modules I got nearly equal errors.

While I was trying it with activitystream I tried to update the users activity stream information with the users identica account name. But instead of applying the changes I got these error from Drupal:

    * warning: pg_query() [function.pg-query]: Query failed: ERROR: relation "activitystream_accounts" does not exist in /home/shnifti/public_html/drupal/includes/database.pgsql.inc on line 139.
    * user warning: query: DELETE FROM activitystream_accounts WHERE module = 'activitystream_feed' and uid = 3 in /home/shnifti/public_html/drupal/modules/activitystream/activitystream.module on line 39.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: relation "activitystream_accounts" does not exist in /home/shnifti/public_html/drupal/includes/database.pgsql.inc on line 139.
    * user warning: query: DELETE FROM activitystream_accounts WHERE module = 'activitystream_identica' and uid = 3 in /home/shnifti/public_html/drupal/modules/activitystream/activitystream.module on line 39.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: relation "activitystream_accounts" does not exist in /home/shnifti/public_html/drupal/includes/database.pgsql.inc on line 139.
    * user warning: query: INSERT INTO activitystream_accounts (module, uid, userid, password, feed) VALUES ('activitystream_identica', 3, 'shnifti', '', '') in /home/shnifti/public_html/drupal/modules/activitystream/activitystream.module on line 47.

When I try to add identi.ca user profile information while clicking to the twitter tab got also Error in the same file and line and nothing is showing up on the page.

    * warning: pg_query() [function.pg-query]: Query failed: ERROR: relation "twitter" does not exist in /home/shnifti/public_html/drupal/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT COUNT(*) FROM (SELECT twitter.twitter_id AS twitter_id FROM twitter twitter LEFT JOIN twitter_account twitter_account ON twitter.screen_name = twitter_account.screen_name LEFT JOIN twitter_user twitter_user ON twitter_account.screen_name = twitter_user.screen_name LEFT JOIN users users ON twitter_user.uid = users.uid WHERE (twitter_account.protected = 0) AND (users.uid = 3) ) count_alias in /home/shnifti/public_html/drupal/modules/tagadelic/views/includes/view.inc on line 739.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: relation "twitter" does not exist in /home/shnifti/public_html/drupal/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT twitter.twitter_id AS twitter_id, twitter_account.profile_image_url AS twitter_account_profile_image_url, twitter.text AS twitter_text, twitter.created_time AS twitter_created_time FROM twitter twitter LEFT JOIN twitter_account twitter_account ON twitter.screen_name = twitter_account.screen_name LEFT JOIN twitter_user twitter_user ON twitter_account.screen_name = twitter_user.screen_name LEFT JOIN users users ON twitter_user.uid = users.uid WHERE (twitter_account.protected = 0) AND (users.uid = 3) ORDER BY twitter_created_time DESC LIMIT 10 OFFSET 0 in /home/shnifti/public_html/drupal/modules/tagadelic/views/includes/view.inc on line 765.

I hope somebody can help me to solve this trouble. I also tried to apply the patch posted here: http://drupal.org/node/256001#comment-1864826
Unfortunately it didnt help me :-/
Ben