External link no longer valid for VISPA record #3775
Description
The external link for the record https://opendata.cern.ch/record/51 is no longer valid.
The link to here:
https://vispa.physik.rwth-aachen.de/CERN
returns a 404 error
The project itself and the domain is still supported:
https://vispa.physik.rwth-aachen.de/
Best to first check with the developers to see if there is a new link. Otherwise remove the record? Or modify it to point to the project page?