Problem with Payment, Format of the site

Hi, I am totally new working with Learnpress.

I am trying to use it together with DIVI.

When I test the side and try to go to payment for the course the format is totally off.

The lines go on the whole screen, it is not centered. The whole format is just not good.

When I go to the site, courses it shows the first course way to far left, just at the border.

How can I change the format?

Also, when I go to payment, it does not give me the option to first register.

Also the paypal option does not appear, when I go to pay.

How can I set up the registration?

Would highly appreciate some help! Even if I have to go to change some coding.

Thanks a lot!