Solved
kadence theme and iubenda
I wants set up kadence theme and iubendaon my site . There seemed to be some memory and resource issues. I ran malwarebytes, ccleaner, and avg to clean up my system. I uninstalled a few programs that I determined I did not need. Then I also disabled some
programs that run on start up.
Kadence theme is awesome, and you don't need to try anyother plugin with it, this theme is enough to do all sort of tasks.
I don't know if there is a specific way to do this, but you can try contacting the theme developer or the iubenda team for help.
in my recent experience also facing same issue while installing iubenda on my internet speed test website with Kadence theme but after the latest update of plugin this issue is resolved perfectly