From Wednesday 1st August 2018 all the Digimap Collections (except Aerial & Lidar Digimap) started new licences. This means that the first time you log in to Digimap after this date you will need to agree to the new licences before you can access the service.
This is a standard process that happens only once a year. It is a simple additional step to the login process and does not involve re-registering any of your details. Login to Digimap as usual and follow the prompts. You will need to agree to new licences for each Collection.
All your saved maps and data download history will remain accessible and unaffected by this process.