1400 files (600MB) in wp-content/cache/autoptimize folder

Hi,

in the autoptimize folder I have a continous creation of js files.
I use WP 4.1, WP Super Cache, CloudFlare and I have a Cloud server account. The site is http://www.giannellachannel.info

The folder now contains 1353 files and the plugin keeps adding. A LOT of js files, that make the folder size over 600MB.

Is it normal?

Thanks for the help

https://wordpress.org/plugins/autoptimize/