Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'. at HTMLDivElement.act

 let asviw = document.querySelector('.content .subcontent .view .start'); 
    let ia = document.querySelector('content .subcontent .view .start img'); 
    let mailact = 0; 
    setTimeout(act1, 10000); 
    nesort.addEventListener('click', act2); 
    function act2(){ 
        backnesort.style = 'background: #ffffff;'; 
        asviw.removeChild(ia); 
    }