Can you please help me see through this auto slideshow code. It keeps showing error"property style not defined". Wat do I change

Question

slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
setTimeout(showSlides, 2000); // Change image every 2 seconds
}

Answer 1

what is in slides?

Answer 2

https://code.sololearn.com/WSag099tCZ3f/?ref=app

Answer 3

That is the code, please help me