Facing issue while creating Internal message under service request using groovy

Summary:

Facing issue while creating Internal message under service request

Error message:

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

def Vo=newView('SrMessageVO')
def newnternalNote1=Vo.createRow()
newnternalNote1.setAttribute("MessageContent","VGVzdGluZ2dmcm9tR3Jvb3Z5")
newnternalNote1.setAttribute("SrNumber",SrNumber)
newnternalNote1.setAttribute("StatusCd","ORA_SVC_COMMITTED")
newnternalNote1.setAttribute("MessageTypeCd","ORA_SVC_INTERNAL_NOTE")
Vo.insertRow(newnternalNote1);