Notice message on site maintenence page

Following Notice message appear when site Maintenance page is activated

Notice: Undefined variable: body_classes in include() (line 35 of /home/test/public_html/sites/all/themes/contrib/colourise/maintenance-page.tpl.php).
Notice: Undefined variable: footer_message in include() (line 73 of /home/test/public_html/sites/all/themes/contrib/colourise/maintenance-page.tpl.php).
Notice: Undefined variable: closure in include() (line 77 of /home/test/public_html/sites/all/themes/contrib/colourise/maintenance-page.tpl.php).