Given that I haven't messed with my HD+ at all and I'm getting the same error, it clearly has nothing to do with BN trying to steal your roots. It's a server issue.
Other threads addressing this issue claim the problem exists with BN servers. Their conclusion is wrong because the shop and library can be accessed perfectly on my Nook 1st Gen..
This is not a good measure to use as the N1E accesses the servers (and does just about everything else) differently than the HDs. Just an FYI.