cannot scroll horizontally with my tablet

hi there, i ve a 2012’s child theme here.

when i open my website https://www.lidia.me/ with my ipad, i m not able to scroll horizontally. It looks like if pages are cropped. Even if i zoom in or out it doesn’t help, it looks always cropped (specially the sidebar). I can scroll vertically indeed.

i found this problem only with tablets…can you help me ?

thanks in advance !!