The Scottish Rock Art Project have issued the following statement on their Facebook page:

Today we have had the astonishing news that the England’s Rock Art (ERA) website is going to be closed down on 15 January, with no warning or explanation. Those of you that are familiar with the ERA website archaeologydataservice.ac.uk/era/
will know that, since its launch in 2008, has been the key source of detailed information and images of rock art in England. These detailed records were compiled by trained community teams during the Northumberland and Durham Rock Art Project (NADRAP) and Carved Stones Investigation: Rombalds Moor, and built on the pioneering work of Stan Beckensall and many others, including the Ilkley Archaeology Group and Paul and Barbara Brown. The ERA website also incorporates the digital Beckensall Archive, produced by Aron Mazel of Newcastle University. With the closure of the website, this wealth of information will no longer be publicly accessible.
Let us know what you think, and we’ll keep you posted!