Here are instructions.
1. Login to WordPress and click on Settings and then select WP Rocket.
2. Select the File Optimization tab.
If this box is not checked, then no setting changes are required. Please skip to step 5.
4. Scroll down and click the Save Changes button.
5. Scroll back to the top and select the Dashboard tab and click the Clear Cache button.
If you have any problems or these instructions are in any way unclear, please contact Slickstream directly at firstname.lastname@example.org.