admin page

after clicking on theme options when i inspect the admin page this error shows

smof.js?ver=3.7.3:1494 Uncaught TypeError: $(…).sortable is not a function
at HTMLDocument.<anonymous> (smof.js?ver=3.7.3:1494)
at j (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,jquery-ui-slider,jquery-tou&load[]=ch-punch,iris,wp-color-picker,plupload,json2&ver=4.1.25:2)
at Object.fireWith [as resolveWith] (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,jquery-ui-slider,jquery-tou&load[]=ch-punch,iris,wp-color-picker,plupload,json2&ver=4.1.25:2)
at Function.ready (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,jquery-ui-slider,jquery-tou&load[]=ch-punch,iris,wp-color-picker,plupload,json2&ver=4.1.25:2)
at HTMLDocument.J (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-draggable,jquery-ui-slider,jquery-tou&load[]=ch-punch,iris,wp-color-picker,plupload,json2&ver=4.1.25:2)

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