Issue one
For the selector issue, you must ensure that you write in the input a class or an ID that exists in your theme. If you leave the input empty , the menu button appears at the beginning of the body .You can do this in the input field in the left column of the Menu button section.
Issue two
To detect the problem with the image you have to isolate it from the rest of the plugins. Therefore, we recommend to disable the other plugins and check if it works. If you still have the same issue, try to open the site in Chrome and access the console by pressing F12, to check if there is any error message related to the Jquery routines.
