Tableau Responsive Theme - Support Thread

[DrByte]

Changed to:

// Path to writable cache directory
private $cache_dir = 'https://mysite.com/cache/';

Highly unlikely that that's a safe change. No writable directory on your server should ever be directly referred to in an http URL. That's a security mess waiting to happen.
It would be better to to use '/home/your_username/public_html/cache/' or whatever the complete path for DIR_FS_SQL_CACHE is in your /includes/configure.php file.