Im testing with theme check plugin it give this warning
WARNING: The theme uses the add_shortcode() function. Custom post-content shortcodes are plugin-territory functionality.
REQUIRED: The <title> tags can only contain a call to wp_title(). Use the wp_title filter to modify the output
RECOMMENDED: No reference to add_theme_support( “title-tag” ) was found in the theme. It is recommended that the theme implement this functionality for WordPress 4.1 and above.
INFO: Possible hard-coded links were found in the file functions.php.
Line 144: echo of_get_option(‘copyright’, ‘© ‘ . date(‘Y’). ‘: ‘ . get_bloginfo( ‘name’ )). ‘<span class=’credit’> | NewsPress Theme by: D5 Creation | Powered by: <a hr
INFO: Non-printable characters were found in the single.php file. You may want to check this file for errors.
Line 24: