Jquery not running

Jquery not running

Dear Sir/Madam


I found following error using development tool

exhibitorsetpassword.php?id=79:637 GET http://www.prajaktasoftware.com/sce/css/shortcodes.css 
exhibitorsetpassword.php?id=79:637 GET http://www.prajaktasoftware.com/sce/css/settings-panel.css 404 (Not Found)
responsee.js:8 Uncaught ReferenceError: jQuery is not defined(anonymous function) @ responsee.js:8
jquery.magnific-popup.js:49 Uncaught TypeError: $ is not a function(anonymous function) @ jquery.magnific-popup.js:49(anonymous function) @ jquery.magnific-popup.js:13(anonymous function) @ jquery.magnific-popup.js:15
exhibitorsetpassword.php?id=79:666 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:666
exhibitorsetpassword.php?id=79:681 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:681
exhibitorsetpassword.php?id=79:702 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:702
exhibitorsetpassword.php?id=79:899 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:899
exhibitorsetpassword.php?id=79:924 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:924
exhibitorsetpassword.php?id=79:1076 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:1076
exhibitorsetpassword.php?id=79:1167 Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:1167
modernizr.js:4 GET http://www.prajaktasoftware.com/sce/img/indexbg.png 404 (Not Found)


could not understand how to resolve

Uncaught ReferenceError: $ is not defined(anonymous function) @ exhibitorsetpassword.php?id=79:666

responsee.js:8 Uncaught ReferenceError: jQuery is not defined(anonymous function) @ responsee.js:8