"Something went wrong." pop up error

Hi,
since we have upgrade flexmonster to version 2.7.9, we are randomly getting this errors (on a alert popup and in the console) when the page load:

• Something went wrong.
  To fix the issue please try the following:
  1. Check if the componentFolder parameter is defined correctly.
  2. Check if the path to the css file is valid.
  3. Check if DevTools (press F12) has an exception.
  4. Ask the support team for help (https://www.flexmonster.com/technical-support/)
• flexmonster.js:9 document.visibilityState: visible

nota: despite of the errors everything seems working fine (but the popup is very annoying)
can you help us?
thanks
Gabriele