Uncaught TypeError: Cannot read properties of undefined (reading 'img') (React)

يظهر لي هذا الخطأ عند محاوله استدعاء البيانات 

import React from "react";
import MemesData from "../MemesData";
import logoimg from "../R.png" 
import one from "../one.jpg"

function Form(){
    const [image , setimage] = React.useState()

    function getimg(){
        const memesarray = MemesData.data.memes
        console.log(memesarray)
        const randomnumber = Math.floor(Math.random * memesarray.length)
        setimage(memesarray[randomnumber].img) 
     }

    

    return(
        <div className="form">
        <div className="form-inputs">
        <input type={"text"} placeholder="top text"></input>
        <input type={"text"} placeholder="bottom text"></input>
        </div>
        <button onClick={getimg}>get a new meme image</button>
        
        <h1>{image}</h1>
        </div>
    )
}

export default Form;

import logoimg from "./R.png" 
import one from "./one.jpg"

export default {
    data : {
        memes: [
            {
                img: "./R.png",
                num:"88"
            },
            {
                img : "./one.jpg",
                num :"99"
            }
        ]
    }
}