im using react native and firebase (v9) to upload image to firebase. in the firebase storage, the file was uploaded, but the size is only 9 bytes so it's not opening properly. I'm not sure how to fix this :S

const uploadFiles = (file, name, storeKey) => {
    if(!file){
        console.log('no file exists')
        return;
    }
    const exe = file.substring(file.lastIndexOf('.'));
    const fileName = name + exe;
    const storageRef = ref(storage, `/files/${fileName}`);
    const uploadTask = uploadBytesResumable(storageRef, file);
    uploadTask.on('state_changed', null,
        (error) => {
            alert(error);
        },
        () => {
            getDownloadURL(uploadTask.snapshot.ref)
            .then((URL) => {
                setDoc(doc(db, 'Store', storeKey, 'coffeeDB', name), {postImage: URL}, {merge: true});
                console.log('url registered')
            });
        }
    )
}