Google Chrome recently did an update which is flagging as unsafe the Amazon AWS site where some logo images and other attachments are stored. The development team is working to resolve this as quickly as possible.
In the meantime, you should be able to reach the blocked pages by clicking first on "Details" on the error message:
And then on "visit this unsafe site":
These are false warning from Chrome which we have reported. We will be working to move the files in the meantime.