I got it too, and furthermore. . .
I got it too, and furthermore, I got the attached message when I tried to run the import site wizard for the first time, before activation. Hope this helps.
After that error pane, it said "Failed to create panel 25" or some such number. And then I got the activation screen, which worked, and so did the Import Web Page(s) wizard.
But when I ran it, I got the second attachment about panel 159, then the third attachment about line 262, twice. The wizard then bailed, with no resulting download. The errors were repeatable, exactly, over & over.
Hope it's ok to tack this on here. I thought it was pertinent.