Why isn't my 'Adapt section height to first image size' function working?

the button ‘Adapt section height to first image size’ doesn’t work anymore because i changed some code earlier :C my banner images don’t fit nicely in my pages anymore, can anybody help my overwrite the code maybe, thanks!

i would also like to hide the our mission part from mobile view, thanks for your answer!

ambientlightingofficial.myshopify.com

password:lewtwa