EDIT: We are back online, and have reactivated the Shop Scanner. We hope to have isolated the issue, but of course please continue to report any issues in the meantime.
We’re aware of issues with the shop scanner, and have had to temporarily disable it while we investigate further. Thank you for your reports.
Thanks for your patience everyone, we’ll let you know when we’ve isolated the problem but for the time being, we’ll be leaving the Shop Scanner offline.