Error in WP super cache

I just installed WP super cache and have used it successfully on several other sites, but am getting this error when I try to activate it:

Warning: file(/home/vascuv0/public_html/wp-content/wp-cache-config.php): failed to open stream: No such file or directory in /home/vascuv0/public_html/wp-content/plugins/wp-super-cache/wp-cache.php on line 1963

Warning: Invalid argument supplied for foreach() in /home/vascuv0/public_html/wp-content/plugins/wp-super-cache/wp-cache.php on line 1964

What should I do to fix it?

Thanks!