Do you have LiteMage enabled for your license? For 1-CPU and lower licenses, you will need to purchase LiteMage as an add-on, while LiteMage starter is included in all 2-CPU and above license. If you just recently upgraded your license by adding LiteMage, you will need to register a new license key with command …/lsws/bin/lshttpd -r and restart LSWS.
Have you placed “LiteMage On” in your stores .htaccess file?
If you host your Magento store on a shared hosting service account, please contact your hosting company to ensure that they have enabled LiteMage for your account.
Have you or your host set the server & virtual host level cache root and cache policy?
Has “Enable LiteMage Cache” been set to “Yes” under “LiteMage Configuration” in the Magento admin?
Have other full page caches been disabled?
Has “Enable LiteMage Cache Only for Listed IPs” been set and your IP is not listed?
For LiteMage to work correctly, you must have both “Configuration” and “Layouts” enabled under System → Cache Management. If you are using Magento Enterprise, you must also disable “Page Cache”.
Did you try flushing LiteMage Cache and Magento Cache Storage?