Invocation of method componentEvent in org.activiti.explorer.ui.task.TaskInvolvedPeopleComponent$1$1 failed

[zoojosh]

Can anyone assist me with this error which keeps occurring every time I try to add a user to a task?

invocation of method componentEvent in org.activiti.explorer.ui.task.TaskInvolvedPeopleComponent$1$1 failed

Thank you very much in advance.
Josh 

[trademak]

Hi Josh,

Are you using the default Activiti Explorer configuration with in-mem H2 database and demo data? Or did you change anything?
Can you add a stacktrace?

Best regards,