Problems adding pages

Hello,

I am having many problems adding pages to my WordPress blog. First, when I have tried to create a new page and update it, the site will say I updated and published it correctly, yet when I attempt to view the page I receive an error message that the server isn’t found even though the link at the top of the page will be added. However, I can add posts without any problems.

Also, I am looking to add many pages to my WordPress blog that I can place static content onto. However, for some reason it seems like I can only have five pages at the moment (the “home” or “start” page plus four additional ones). However, I have read that you can have unlimited pages and posts on your blog.

Here is my blog: https://www.reviewcaptain.com/

Is the problem I am encountering a restriction of the theme that I am using? Also, even if there were a way to add more pages to my blog than I currently am allowed to, would there be a way to have these displayed at the top navigation pane? How would I do this? How would I be able to add sub-navigation, or pages as subpages of others?

Thank you for any help you can provide!

Mike