Error message

• Notice: Undefined variable: _SESSION in author_view_article() (line 40 of /var/www/sites/idsi/ibn2014/trunk/sites/all/modules/author_view/author_view.page.inc).
• Notice: Undefined variable: result in author_view_article() (line 1529 of /var/www/sites/idsi/ibn2014/trunk/sites/all/modules/author_view/author_view.page.inc).
• Warning: Invalid argument supplied for foreach() in author_view_article() (line 1529 of /var/www/sites/idsi/ibn2014/trunk/sites/all/modules/author_view/author_view.page.inc).