I've just logged in to look at my return and its come up with a Take Action error "We can’t connect to HMRC right now" yet the Making Tax Digital Enabled logo is showing in the top left corner. When you go to the Take Action button it just says about signing up but I'm already signed up and have submitted returns for the last 3 years without any issues. All the help topics are related to people just setting up MTD.

Anyone know how to fix this as I'm baffled, thanks in advance.