Working fine for me in Dublin. If there was a general network outage over the past few days I'm sure that we would have heard about it here before now. As such is either a local problem or specific to you. You should contact 48 support and ask them about it. See the link in my signature below.
Hope this helps.
I am not a 48 employee so if you need to contact 48 support then use option 3 or the chat facility here.