Side nav on iphone issue

Hi everyone. I’m currently building my portfolio and i have a hidden side nav that is activated from clicking a hamburger button. When i test it on webflow i have no issue but if i test it on my iphone and i am , for example, on my fourth section(bottom page) it take me right back up as soon as the side nav appears. I cannot seem to find the solution for that issue. anyone experienced this? thanks!

my website: