Additional data on the console log:
On page load:
postman_wizard.js?ver=1.7.7:6 Uncaught TypeError: jQuery(…).steps(…).validate is not a function
at initializeJQuerySteps (postman_wizard.js?ver=1.7.7:6)
at HTMLDocument.<anonymous> (postman_wizard.js?ver=1.7.7:1)
at i (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:2)
at Object.fireWith [as resolveWith] (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:2)
at Function.ready (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:2)
at HTMLDocument.K (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:2)
On the Next button click:
Uncaught TypeError: form.validate is not a function
at handleStepChange (postman_wizard.js?ver=1.7.7:11)
at HTMLFormElement.onStepChanging (postman_wizard.js?ver=1.7.7:6)
at HTMLFormElement.dispatch (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at HTMLFormElement.r.handle (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at Object.trigger (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at Object.a.event.trigger (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:9)
at a.fn.init.triggerHandler (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at u (jquery.steps.min.js?ver=1.1.0:6)
at HTMLAnchorElement.Q (jquery.steps.min.js?ver=1.1.0:6)
at HTMLAnchorElement.dispatch (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
load-scripts.php?c=1&load[]=hoverIntent,common,admin-bar,svg-painter,heartbeat,wp-auth-check&ver=4.8.3:246 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined
at HTMLDocument.<anonymous> (load-scripts.php?c=1&load[]=hoverIntent,common,admin-bar,svg-painter,heartbeat,wp-auth-check&ver=4.8.3:246)
at HTMLDocument.dispatch (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at HTMLDocument.r.handle (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at Object.trigger (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at Object.a.event.trigger (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:9)
at HTMLDocument.<anonymous> (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at Function.each (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:2)
at a.fn.init.each (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:2)
at a.fn.init.trigger (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.3:3)
at Object.<anonymous> (load-scripts.php?c=1&load[]=hoverIntent,common,admin-bar,svg-painter,heartbeat,wp-auth-check&ver=4.8.3:245)