I have searched a lot to fix this. but not succeeded find this fix. I'm working with visual composer 5.4.7 and Wordpress 4.9.6 i have used Visual composer tabs in a webpage. there it shows the below error and does not shows the dropdown list of main_menu.
JQMIGRATE: Migrate is installed, version 1.4.1
vc-tabs.min.js?x71958&ver=5.0.1:1 Uncaught TypeError: Cannot read property 'getRelatedTab' of undefined
at HTMLDocument.changeHandler (vc-tabs.min.js?x71958&ver=5.0.1:1)
at HTMLDocument.dispatch (jquery.js?x71958&ver=1.12.4:3)
at HTMLDocument.r.handle (jquery.js?x71958&ver=1.12.4:3)
at Object.trigger (jquery.js?x71958&ver=1.12.4:3)
at Object.a.event.trigger (jquery-migrate.min.js?x71958&ver=1.4.1:2)
at HTMLDivElement. (jquery.js?x71958&ver=1.12.4:3)
at Function.each (jquery.js?x71958&ver=1.12.4:2)
at a.fn.init.each (jquery.js?x71958&ver=1.12.4:2)
at a.fn.init.trigger (jquery.js?x71958&ver=1.12.4:3)
at a.fn.init.t.fn.(/beta/shared-hosting/anonymous function) [as hide] (http://tech.co.uk/beta/wp-content/plugins/wordpress-popup/assets/js/front.min.js?x71958&ver=1.1:2:14154)
All the other pages which are not using visual composer working pretty good with nav_menu dropdown and responsiveness.
I am not getting this how to get rid of these errors. please help me out of this.
just Going to folder/file Manager websiteData/wp-content/plugins/ and rename the folder Wordpress-popup //add a number at the end. this will deactivate the plugin and this was generating errors for other functionalities.
this is the only plugin which is conflicting with VC_tabs
Thanks