EDIT

I followed the instrcutions given in Manual-EDIT-Platform-v.1.19b Chapter 4.3.7 and 9.4:

• Start with fresh db caryophyllales_demo_01 on WSI
• create

Lymanbensonia micrantha (Vaupel) Kimnach in Cact. Succ. J. (Los Angeles) 56(3): 101. 1984.
≡ Cereus micranthus Vaupel in Bot. Jahrb. Syst. 50: Beibl. 111: 19. 1913.

• add specimen typedesignation to Cereus micranthus by entering only the titleCache Holotype: Peru, Puno, near Sandía, 31. July 1902, Weberbauer 1353 (B, destroyed), isotype: US.
• open the specimen editort (list)
• select the specimen and enter the data as shown here:
• save

login : 
editor version : 5.10.0
server :  ()
schema version : 
os : Linux 5.0.0-32-generic amd64
java : 1.8.0_131
org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service at [http://160.45.63.230:80/cdmserver/caryophyllales_demo_01/remoting/occurrence.service]; nested exception is java.lang.NullPointerException
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.convertHttpInvokerAccessException(HttpInvokerClientInterceptor.java:216)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:147)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
    at com.sun.proxy.$Proxy95.load(Unknown Source)
    at eu.etaxonomy.taxeditor.bulkeditor.input.OccurrenceEditorInput.loadEntity(OccurrenceEditorInput.java:248)
    at eu.etaxonomy.taxeditor.bulkeditor.input.OccurrenceEditorInput.loadEntity(OccurrenceEditorInput.java:1)
    at eu.etaxonomy.taxeditor.bulkeditor.input.AbstractBulkEditorInput.lambda$0(AbstractBulkEditorInput.java:271)
    at org.eclipse.core.runtime.jobs.Job$2.run(Job.java:186)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.NullPointerException
    at eu.etaxonomy.cdm.cache.CdmTransientEntityCacher.getCacheElement(CdmTransientEntityCacher.java:288)
    at eu.etaxonomy.cdm.cache.CdmTransientEntityCacher.getFromCache(CdmTransientEntityCacher.java:293)
    at eu.etaxonomy.cdm.cache.CdmTransientEntityCacher.getFromCache(CdmTransientEntityCacher.java:314)
    at eu.etaxonomy.cdm.cache.CacheLoader.load(CacheLoader.java:239)
    at eu.etaxonomy.cdm.cache.CacheLoader.load(CacheLoader.java:63)
    at eu.etaxonomy.cdm.cache.CdmTransientEntityCacher.load(CdmTransientEntityCacher.java:157)
    at eu.etaxonomy.taxeditor.session.CdmEntitySession.load(CdmEntitySession.java:70)
    at eu.etaxonomy.taxeditor.session.CdmEntitySessionManager.load(CdmEntitySessionManager.java:131)
    at eu.etaxonomy.taxeditor.service.CdmServiceRequestExecutor.doExecuteRequest(CdmServiceRequestExecutor.java:82)
    at org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor.executeRequest(AbstractHttpInvokerRequestExecutor.java:138)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:194)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:176)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:144)
    ... 8 more

The specimen has been duplicated now