For about 4 or 5 days I have received this error message every time I have started Tails. I have restarted, changed computer, created a new USB with a new ISO image but still get the error message. Is this something to be worried about or does it relate to the forthcoming manual upgrade to Tails 1.2.3. ?
It was an issue with Tails' update mechanism that has since been fixed. It shouldn't have happened since then, if it did please let the Tails developers know as soon as possible