Saving Survey Error

[rodavelino]

When I edit a survey and try to save it, it says:

Problem with saving survey. Original error: error

The log shows the following:

@6b03ga1pn
Internal Server Error (500) for request POST /surveyManager/saveSurvey

Execution exception (In /app/controllers/SurveyManager.java around line 67)
NullPointerException occured : Try to read userAdmin on null object models.NdgUser (controllers.SurveyManager.saveSurvey, line 67)

play.exceptions.JavaExecutionException: Try to read userAdmin on null object models.NdgUser (controllers.SurveyManager.saveSurvey, line 67)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:229)
at Invocation.HTTP Request(Play!)
Caused by: java.lang.NullPointerException: Try to read userAdmin on null object models.NdgUser (controllers.SurveyManager.saveSurvey, line 67)
at play.classloading.enhancers.PropertiesEnhancer$FieldAccessor.invokeReadProperty(PropertiesEnhancer.java:202)
at controllers.SurveyManager.saveSurvey(SurveyManager.java:67)
at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:546)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:500)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:476)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:471)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:159)
... 1 more

[leGeddy]

I get different error messages but the one that comes up the most is:

Internal Server Error (500) for request POST /surveyManager/saveSurvey

Execution exception (In /app/controllers/deserializer/QuestionObjectFactory.java around line 62)
LazyInitializationException occured : failed to lazily initialize a collection of role: models.Category.questionCollection, no session or session was closed

Hope this helps.