A community member has associated this post with a similar question:
Unable to launch Interactive Labs
Only moderators can edit this content.
Labs are no longer working for Dynamics 365 Finance and Operations
Hello - None of the labs for Dynamics 365 Finance and Operations are currently working. The VM does not launch and the message "Sorry, this lab is no longer available." is displayed.
I have tried clearing my cache, using different browsers and different machines, used different user accounts, and incognito mode.
Judging by other questions posted by users in the last 2 days, it appears that the lab service is down.
Is there an ETA for when this service will be back up?
This is currently the only hands on environment I have to practice and learn Dynamics 365 F&O.
Thank you.