It gives the error in the plugin - first problem: the link to the time.ly website page is broken and leads to a 404.
Please update this to a working page.
The problem can be easily fixed by just saving the options again in the settings - you should somehow let the plugin autosave these settings so after a update the site does not break and give this false warning. I have enough memory (128) allocated and it worked perfectly after just pressing save in the theme settings.
Theme options > Save settings
Is all you need to fix the CSS issue.
Please fix this error, as it is very confusing if the site breaks after an update. Thank you!