Unit 2 Lesson 13 Levels 6 through 10 Not Working

I’m getting the error seen in the image I’ve attached on bubbles 6, 8 through 10 in Web Lab on Unit 2 Lesson 13. I’ve tried multiple browsers and operating systems to get it to work, but I haven’t been successful. Anyone else able to view these levels properly or having trouble with them? Any advice on how to make it work? Or does it have to be fixed by the devs at code.org?

This has now been resolved by Code.org Support via email. All I had to do was click Version History and start over. Thanks!

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Great! And thank you for posting the solution - this will be of great help to those with similar issues!