Apologies if you are having problems with downloading our protected data from A Vision of Britain through Time.
We are aware of the problem, and are working on finding the cause. However, our current capacity to sort this kind of issue is very limited so it may take some time to resolve.
The rest of A Vision of Britain through Time is working normally. This includes downloads for all data we make freely available that is not under the protected system – i.e. statistics, most raster maps, county boundaries and GB1900 data.