I am cleared the cache but it is the same.
I have done some checks, if I remove the something of that sidebar in section Widgets, the sidebar content change in pages but it doesn’t change in homepage.
I have disabled the plugin custom sidebars and the problem is the same.
The message appear even if I don’t use any block of kadence.
I only have activated tabs, accordion, icon box and icon list.
It is a single site.
I am the admin user.