500 Internal Server Error

Error getting http://oubliette.library.umass.edu:8080/saxon/SaxonServlet?source=http%3A%2F%2Foubliette.library.umass.edu%3A8080%2Ffedora%2Fget%2Fscua%3Amums704-cc-i0010%2Fmets%2F2016-06-24T20%3A47%3A08.881Z&style=http%3A%2F%2Foubliette.library.umass.edu%3A8080%2Ffedora%2Fget%2Ftest%3Aobjectviewxsl%2Fxsl&clear-stylesheet-cache=yes

fedora.server.errors.GeneralException: Error getting http://oubliette.library.umass.edu:8080/saxon/SaxonServlet?source=http%3A%2F%2Foubliette.library.umass.edu%3A8080%2Ffedora%2Fget%2Fscua%3Amums704-cc-i0010%2Fmets%2F2016-06-24T20%3A47%3A08.881Z&style=http%3A%2F%2Foubliette.library.umass.edu%3A8080%2Ffedora%2Fget%2Ftest%3Aobjectviewxsl%2Fxsl&clear-stylesheet-cache=yes
	at fedora.server.access.dissemination.DisseminationService.get(DisseminationService.java:1114)
	at fedora.server.access.dissemination.DisseminationService.getDisseminationContent(DisseminationService.java:1148)
	at fedora.server.access.dissemination.DisseminationService.assembleDissemination(DisseminationService.java:736)
	at fedora.server.access.DefaultAccess.getDissemination(DefaultAccess.java:447)
	at fedora.server.access.FedoraAccessServlet.getDissemination(FedoraAccessServlet.java:742)
	at fedora.server.access.FedoraAccessServlet.doGet(FedoraAccessServlet.java:449)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at fedora.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:234)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at fedora.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:234)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at fedora.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:234)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Request failed [500 Illegal HTML character: decimal 128]
	at fedora.common.http.WebClient.get(WebClient.java:178)
	at fedora.common.http.WebClient.get(WebClient.java:102)
	at fedora.server.access.dissemination.DisseminationService.get(DisseminationService.java:1106)
	... 31 more