Unable to use Twitter

Does anyone know why I am unable to use Twitter since the new revamp (which is awful) it shows a blue "whirring" circle sign as if its trying to load up, but never suceeds. I cannot access it at all from my computer? I am therefore unable to post messages onto Twitter or load any pics on Twitter so I will only be able to send messages via WhatsApp for the Thursday Nature Club and Suffolk BINS from now on. You will still be able to view pics on this blog. Totally mystified as to how to fix this current Twitter problem?