Can't find the level after robot-ragnarok

Bugs
1

I just play codecombat this afternoon,and after robot-ragnarok,I can’t find the next level I can play,no button can click.
Who can told me how to do next?
And I search for the answer for same question like this, maybe the next level url could help me ,so if anyone know the next level url, tell me .
thx

2

Robot-Ragnarok doesn’t unlock a level. It was a special level, which unlocked a limited-time item.
After The-raised-Sword the next level is haunted-kithmaze.

3

Thank you help me to solve this problem