Glad you got it sorted.
You need to read up on WordPress. Its nothing like a straight html site. While we answer a lot of non-Kleo related questions here, we really dont have the time or resources to teach you how to use WP.
With that said, I didnt mean change your site wide permalinks. I said change the permalink for that page. Its under the title. But if you didnt change the blog page, that shouldnt matter. Now, go back to Settings > Permalinks and change it to anything other than default.
Naming a page index isnt going to do anything. WP doesnt work that way. Go to Settings > reading and set your home page and blog page there.
Here’s some suggested reading
https://codex.wordpress.org/Main_Page
https://wpbakery.atlassian.net/wiki/display/VC/Visual+Composer+Pagebuilder+for+WordPress
and if you’re going to use buddypress: https://codex.buddypress.org/