I have signed up for the Salesforce so I may complete the labs on there and I am doing it with my Google Chrome Browser. I have tried two different emails and the same thing has occurred. After I verify my account with my email, it sends me to apparently and outdated lighting version, or so my teacher told me. When I look deeper into the side tab that says to convert to the newest lighting updated version it says that Google Chrome is not a supported browser, even though my teacher uses the same browser when she does these labs.
Sorry you're stuck but there's almost always a pretty easy fix! Don't try to start all over again–not necessary! Don't start undoing stuff and don't uninstall Max's Pitch Package, etc.
There's a 95% chance the same snag/fix is listed & answered in the Help FAQ. Check that first but if you can't find it there, post your problem + a screencap in the proper category below & we'll post a solution back ASAP!