Error running Javascript on startup

Thi is the message:
2019-03-27 08:51:28: Error running JavaScript: TypeError: window.setBackgroundColor is not a function. (In ‘window.setBackgroundColor(‘rgb(235, 235, 235)’)’, ‘window.setBackgroundColor’ is undefined)
2019-03-27 08:51:28: Error running JavaScript: ReferenceError: Can’t find variable: $

I’m worry.
Could you help me, please ?


That is known issue on some computers though it is not harm at all. You can turn it off by the following steps:

  • In Start Page, click Preferences (the Gear icon).
  • Select the Miscellaneous tab.
  • Change Log UI level to Error.
  • Click OK and restart the program.

The issue will be fixed soon. We are sorry for this inconvenience.


Thanks for your quick answer.