In addition, the SEO URL (possibly due to this error) does not work for blog articles. I just tried to add a new blog post, and the SEO Keywords are not working correctly for me.
Even if I put specific SEO Keywords, each blog posts ends with the following adress:
Admin login works fine, but FTP is not. Can you please check FTP credentials?
Generally there is nothing wrong with your theme settings, but there should be something different in the OCStore fork. This is not an official OpenCart copy and we will need to dig deeper. Will wait for valid FTP.