Finally fixed for me now. Still not sure what caused the issue
No.
One is my own website – http://www.footballbloggingawards.co.uk – The one with the error
One is where I work – http://www.camporetro.com – logging in fine
I’m having the exact same issue with one of my sites.
Cannot login and being thrown with the same ERROR messag despite me enabling cookies.
How ever the 2nd site I have access is working fine.