Compressor.php not found

My error logs are filling up with the below message:

PHP Warning: require_once(/home/thisblew/public_html/wp-content/plugins/w3-total-cache/lib/Minify/Minify/CSS/Compressor.php): failed to open stream: No such file or directory in /home/thisblew/public_html/wp-content/plugins/w3-total-cache/inc/define.php on line 1449

I don’t have a Compressor.php in the above directory, why is it missing?

https://www.ads-software.com/plugins/w3-total-cache/