This happened because the system does not identify which council you are trying to connect to.
If you still are not using Single Sign-on, you need to login again indicating the council to which you want to connect, as the example below:
https://epeponline.co.uk/[YOUR ACCESS WORD]
If you are using Single Sign-on to connect to ePEP Online, please try again by clicking on the button below:
ePEP Single Sign-on