How to show the password of the elastic built-in superuser elastic?

First screenshots of text are not good, they can not be searched, or analyszed for debug etc... and some people can not see them... formatted text is much better.

Not sure what you mean by "you decided to changed the IP of elasticsearch" did you completely re-install? if not the certificates will probably not be valid an probably will not work... unless you started completey over

With respect to kibana I think you can clean out all the generated stuff in the kibana.yml then restart kibana you will need to make sure the elasticsearch host in the kibana.yml file is pointed at the correct elasticsearch IP.

Then regenerate and enrollment token from elasticsearch

Then regenerate a kibana verification code

Or just start ALL over with all your new settings IP addresses etc... etc... changing things without understanding the impact is going to cause issues..