Not able to open expression view for interface

When we click on expression view as shown in attached in below file we are getting Http 500 error and in log we are getting below error.

Any help in this regard will be appreciated. Thanks..

 

230.56.220:8009-2) 2017-12-15 12:03:19,614 [ajp-/10.230.56.220:8009-2] ERROR com.appiancorp.rest.shared.FallbackExceptionMapper - Internal Server Error on REST API invocation.
12:03:19,635 INFO  [stdout] (ajp-/10.230.56.220:8009-2) java.lang.ArrayIndexOutOfBoundsException: length == 32896 off == 4 buffer length == 32768
12:03:19,647 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at java.net.SocketInputStream.read(SocketInputStream.java:162)
12:03:19,657 INFO  [stdout] (ajp-/10.230.56.220:8009-2)          at java.net.SocketInputStream.read(SocketInputStream.java:141)
12:03:21,712 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
12:03:21,725 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
12:03:21,739 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)
12:03:21,757 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)
12:03:21,770 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512)
12:03:21,782 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50)
12:03:21,795 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50)
12:03:21,807 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169)
12:03:21,821 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151)
12:03:21,832 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
12:03:21,844 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:559)
12:03:21,855 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
12:03:21,867 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
12:03:21,878 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:490)
12:03:21,889 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:422)
12:03:21,901 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926)
12:03:21,912 INFO  [stdout] (ajp-/10.230.56.220:8009-2)         at java.lang.Thread.run(Thread.java:748)
12:03:21,921 ERROR [org.apache.coyote.ajp] (ajp-/10.230.56.220:8009-2) JBWEB003061: Invalid message received with signature 32894

 

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