Error message

• Notice: Undefined offset: 12 in drupalexp_preprocess_html() (line 154 of /home/treize/production/treize-articles.com/sites/all/themes/drupalexp/template.php).
• Notice: Trying to get property of non-object in drupalexp_preprocess_html() (line 154 of /home/treize/production/treize-articles.com/sites/all/themes/drupalexp/template.php).
• Notice: Undefined offset: 12 in drupalexp_preprocess_html() (line 156 of /home/treize/production/treize-articles.com/sites/all/themes/drupalexp/template.php).
• fatal error: color expected for red(): line: 19
• Notice: Undefined offset: 11 in druplexp_theme->setPresetVars() (line 73 of /home/treize/production/treize-articles.com/sites/all/themes/drupalexp/includes/core.php).