I need an expert in wordpress

Hello,

I am looking for someone to fix some errors on my wordpress which is a customised wordpress.
I need someone with excellent skills in coding.
I think the errors come from pages in WordPress.
The homepage for example contains HTML which is compatible with current the theme. But when the theme is changed, it breaks.

I need urgent changes to the blog page, I have an example of a blog page I want it to look like.

Please contact me if you are serious and ready to start NOW!

Thanks