Error message

• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in _drupal_bootstrap_page_cache() (line 2756 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent in drupal_session_initialize() (line 242 of /home1/smcsacin/public_html/includes/session.inc).
• Warning: session_id(): Session ID cannot be changed after headers have already been sent in drupal_session_initialize() (line 266 of /home1/smcsacin/public_html/includes/session.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1555 of /home1/smcsacin/public_html/includes/bootstrap.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home1/smcsacin/public_html/sites/all/modules/responsive_panels/responsive_panels.module:139) in drupal_send_headers() (line 1551 of /home1/smcsacin/public_html/includes/bootstrap.inc).