mediterrania wrote:
What do you want to say with "Try using RokBooster" ?
I'm afraid that if I install and enable it, maybe other thing doesn't work
If your concerned, which is OK, get Akeeba Backup and backup the site. RokBooster is a plugin. If something does go wrong - you simply disable it.
mediterrania wrote:
In the extension info explains: that Gzip must be installed on your server and enabled in PHP in order to function.
Gzip is installed with the template isn't ?
Could you explain it to me, please ?
That NOTICE is not warning to the Joomla caching process called Gzipper. It's referring to an Apache PHP extension file that must be installed on your server. It's a very common one but to double check go to -> Admin -> Site -> System Information -> System Information ->Phar -> gzip compression and it should be set to ENABLED.