- Your currently used theme is not in the wordpress.org/themes/ directory: https://wordpress.org/themes/search/ROSA/
- These forums are for free themes available in the WordPress theme directory at wordpress.org/themes/. So please contact the developer/vendor directly for support with your question. You'll be more likely to find a good answer from them, for they have the access to its code. Forum volunteers are not given access to commercial/custom products, so they would not know why your /custom/commercial theme or plugin is not working properly. The developers/vendors are responsible for supporting their custom/commercial product. See http://codex.wordpress.org/Forum_Welcome#Commercial_Products