I see that you are runnig old version of X Theme and Revolution slider. Currently you are runnning X Theme version 4.6.4 and revolution slider version 5.4.5.2. I strongly suggest you to update X Theme, revolution slider and bundled plugins as most of the times running outdated softwares cause compatibility issues. Please refer our changelog, theme update guide and version compatilibity guide:
Your Cornerstone pages won’t be affected. But, as a best practice, always backup your site so you have something to revert to in case something happens.