They want users to buy the pro version to remove the "Powered by WordPress" text from the footer. I did not find any way to modify or delete it. However, using CSS, it cannot be hidden.
Log into WordPress as admin and go to "Customize" -> "Additional CSS".
Put the following CSS in the textbox and click on the publish button. It will hide "Neve" and "Powered by WordPress" texts. But if you open the source code, you will find that these texts were not removed.
.component-wrap > div {
display: none;
}