Views : SQLSTATE[42S02]: Base table or view not found (concerning a Custom Value Table)
This error usually means .... "Drupal doesn't know the table exists" ... which either means

1/ you have your civicrm tables in a different database and need to update the list of tables that you entered in settings.php so that drupal can connect to it

2/ the fields have been created, but no data has been stored yet (i may be wrong but i think the table for the data is created the first time a record is saved that contains data that needs storing in the table)