Nothing happens after i click the submit button.
This most likely occurs due to the fact that you are not actually using a Submit button, but a normal button. Note that in RSform!Pro there are two types of buttons: Button and Submit.
To correct this, just replace the normal button with the special submit button type.
If you have unchecked the Autogenerate Layout checkbox from the Form Layout tab, you will have to manually apply the changes to the form layout code.