BI Publisher Report Error: oracle.apps.xdo.oa.util.DataTemplate.getDataTemplate(DataTemplate.java:379)

At my client's location, users were trying to run a report and they were getting following errors

Calling XDO Data Engine... java.lang.NullPointerException at oracle.apps.xdo.oa.util.DataTemplate.getDataTemplate(DataTemplate.java:379) at oracle.apps.xdo.oa.util.DataTemplate.<init>(DataTemplate.java:226) at oracle.apps.xdo.oa.cp.JCP4XDODataEngine.runProgram(JCP4XDODataEngine.java:283) at oracle.apps.fnd.cp.request.Run.main(Run.java:157)

Upon investigation, i found that while loading rtf and xml templates, LOB_CODE was misspelled. XDO loader does not care if rtf/xml templates being uploaded refer to existing data template/layout template. By reloading rtf and xml templates for correct LOB_CODE, this error went away.