How do I get to the settings screen?

user warning: Unknown column 'u.signature_format' in 'field list' query: SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.format, c.timestamp, c.name, c.mail, c.homepage, u.uid, u.name AS registered_name, u.signature, u.signature_format, u.picture, u.data, c.thread, c.status FROM comments c INNER JOIN users u ON c.uid = u.uid WHERE c.nid = 5 AND c.status = 0 ORDER BY c.thread DESC LIMIT 0, 50 in /home/scienceb/public_html/tivstudio/www/modules/comment/comment.module on line 992.

 Triple tap on the white space below the scan square. The settings screen access was made this obscure on purpose, so you won't reach it by accident when showing the app to friends.