Figma Help: Prototype Needs at Least One Frame Error Explained

Hey guys. First of all you need to know I’m a complete newbie. I work in the marketing department but need to replace the ui designer on a quick 2 pages project. I’m using the relume kit on figma. I only used relume components from the library. And put them on top of each other to build a page wireframe. My issue is -> I don’t understand why it says « a prototype needs to have at least one frame » when I try to click on « present my project ». Please help :) Jo