Changing Theme from Genesis to Bevada

Hi,

Currently I have genesis child theme on my blog bikereviewshub.com but for some reason I am facing mobile friendliness issue on search console so I tried to move website from genesis to bravada but unfortunately my tables gets corrupt. I am not a technical person and don’t know much about these technical things.

Can anyone help me to fix it or just guide me?

Website: bikereviewshub.com