Buttons on mobile stack on top of each other?!

Design help Layout & Design
1

I use this element on multiple pages:
image

Unfortunately on mobile the buttons overlap and cram on top of each other like this:

image
image515×1280 77.8 KB

Any recommendations for a quick fix? Maybe make them stack?

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

2

https://prnt.sc/19XaX9lMb4Se

https://prnt.sc/uyzXFCiHxjpn

https://prnt.sc/5Kb7660U4eRL

https://prnt.sc/vXdT0GbhxXl5

Button wrapped in div and style like in screenshot