James Clark <jamesc@bofh.co.nz> writes:

Fatal error: Table 'drupal.users_roles' doesn't exist query: SELECT r.rid, r.name FROM role r INNER JOIN users_roles ur ON ur.rid = r.rid WHERE ur.uid = 1 in /usr/share/drupal/includes/database.mysql.inc on line 125

Unfortunately, you didn't tell me from which version you upgraded. It looks as if the database upgrade procedure hadn't been run. You can still run it manually. Cheers, -Hilko