The lab (Working with the Shell) is not pointed to the correct katacode page/tutorial. Please see attached screenshot.
@dreday13 , could you please check after clearing the cache. I could see that the lab is loading fine.
I cleared cache, no change. Rebooted laptop, change. Switched from Safari Version 14.1.2 (166126.96.36.199.3) to firefox 90.0.2 (64-bit), no change. It is affecting any lab I attempt after the change to the website.
disregard, ad blocker was the root cause. label me a noob. LOL
No regret, We are here to learn from our mistakes including the above issues.