Text on page overlapping

Hello,

I have issues with text on my page overlaping from the screen to the right. It seems like the text container is somehow broken (my guess), but I am no coder so I don´t know how to check it.

What I want to achieve is that if I am writing text in WP text editor it should automaticaly adjust it to the width of the dedicated text area on the page.

Here you can see the issue: http://letstradetogether.com/join-us/