Wordpress developer needed for theme transfer

I have a long established site that runs a blog and woocommerce store. My theme (Olsen) was recently retired and is no longer supporting woocommerce. I think I need to change my theme, but I’ve worked very hard to precisely construct the aesthetic of the site, and I do not want to change any of it.

I did find what appears to be a more up to date version of the same theme online (Olsen Pro), but I’m not sure it would be different or how difficult the transfer would be.

I’m not qualified to solve this problem (I’m not even sure I’ve diagnosed it properly), and I need some help.

Here is my site: bethlehemsociety.com