MarkView SSI - Unable to submit an SSI (Self Service Invoice) request

[[ACTIVE] ExecuteThread: '7' for queue: 'weblogic.kernel.Default (self-tuning)'] WARN com.markview.ssi:285 - Handler execution resulted in exception
    java.lang.NullPointerException
    at com.markview.ssi.database.JdbcGetBarcodeUrl.execute(JdbcGetBarcodeUrl.java:54)
    at com.markview.ssi.model.ModelImpl.setBarcodeUrl(ModelImpl.java:3704)
    at com.markview.ssi.model.ModelImpl$$FastClassByCGLIB$$533a22b0.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149
    at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700).

• Go to Markview Home > Administration > Markview Admin > Document Types > search for document types that has the keyword “SSI” , you should get four document types as follows:
  SSI CREDIT INVOICE SSI INVOICE
  SSI INVOICE FOLLOW UP SSI RENDERED INVOICE
• Click on each and ensure that they are active by checking the disabled date.

• Open a support case and provide us with the following information:
• Upload to the case the output of the query below, to check If there are multiple records created for it or if the record is disabled.
  select * from mvt_cover_page_class_property where display_name = 'RequestID'
  • And the preferences output from the support tools.
  • Then enable the SSI debug logging, reproduce the issue and upload the log file (mvssi.log) to the case as per the article below:
    What diagnostic steps should I follow and what information should I gather when there is an issue with MarkView Self-Service Invoice?