After I deleted wooCommerce in my local website, I can see the theme Abundance. Thanks, Mya!
Now I got new problem - I tried my website with my web hosting company, http://www.mywebsite.ca (not the local one), the theme Abundance that I've successfully installed there weeks ago is gone and I got a white screen!
I guess this is a theme multisite conflict issue. I cannot remember well if I was asked for my URL when purchasing the theme Abundance. If I was, I must have entered http://www.mywebsite.ca (my website with my web hosting company). Once I tried to upload and install Abundance in my local website(http://localhost/wordpress), my theme Abundance previously installed in my website, http://www.mywebsite.ca, is gone.
I am using different user names for my website (e.g., http://www.mywebsite.ca) WordPress and my local website WordPress(http://localhost/wordpress). So I think the conflict is about the theme Abundance, but not the WordPress.
My question is: Is there a tag associated with the theme Abundance package during the purchase? (which means I am only allowed to install it in ONE website) How can I fix it so that I can install my Abundance theme both on my website, http://www.mywebsite.ca, and my local website? Is multisite install the solution? How can I do it?