Error message

• Notice: Undefined variable: container_class in include() (line 128 of /var/www/ppu.edu/pesp/sites/all/themes/ppu2018/templates/system/page.tpl.php).
• Notice: Undefined variable: html_attributes in include() (line 60 of /var/www/ppu.edu/pesp/sites/all/themes/ppu2018/templates/system/html.tpl.php).
• Notice: Undefined variable: body_attributes in include() (line 94 of /var/www/ppu.edu/pesp/sites/all/themes/ppu2018/templates/system/html.tpl.php).