ERROR: 500 Internal Server Error

no protocol: http%3A%2F%2Fbtci.stanford.clockss.org%2Fcontent%2Fvol2%2Fissue2%2F

RequestURI=/ServeContent?url=http%253A%252F%252Fbtci.stanford.clockss.org%252Fcontent%252Fvol2%252Fissue2%252F

LOCKSS daemon, powered by Jetty