This following error message was seen inside of Tomcat logs:
ERROR - TaskFactory.createInstance(65) |2019-11-17 21:39:19,399| OpenmrsClassLoader could not load class: org.openmrs.module.usagestatistics.StatsAggregatorTask. Probably due to a module not being loaded
ERROR - TimerSchedulerServiceImpl.scheduleTask(256) |2019-11-17 21:39:19,400| Failed to schedule task Process Usage Statistics Data
ERROR - TimerSchedulerServiceImpl.onStartup(111) |2019-11-17 21:39:19,402| Failed to schedule task for class org.openmrs.module.usagestatistics.StatsAggregatorTask
org.openmrs.scheduler.SchedulerException: Failed to schedule task
ERROR - RegisterReportsTask.onExecute(44) |2019-11-18 09:49:15,138| One of reports has an error which blocks it and other reports to be registered
java.lang.IllegalArgumentException: Unable to find program using key: PMTCT Combined Clinic - Infant
ERROR - CommonsLoggingOutput.error(75) |2019-11-18 12:20:36,807| Line=117 The content of element type “dwr” must match “(init?,allow?,signatures?)”.
ERROR - CommonsLoggingOutput.error(75) |2019-11-18 12:20:36,864| Parameter mismatch parsing signatures section in dwr.xml on line: DWRHtmlFormEntryService.checkIfLoggedIn()
ERROR - CommonsLoggingOutput.error(75) |2019-11-18 12:20:36,950| Parameter mismatch parsing signatures section in dwr.xml on line: DWREncounterService.findEncounters(String phrase, Integer patientId, boolean includeVoided)
ERROR - CommonsLoggingOutput.error(75) |2019-11-18 12:20:36,951| Parameter mismatch parsing signatures section in dwr.xml on line: DWREncounterService.findBatchOfEncounters(String phrase, boolean includeVoided, Integer start, Integer length)
ERROR - RegisterReportsTask.onExecute(44) |2019-11-20 09:49:15,110| One of reports has an error which blocks it and other reports to be registered
java.lang.IllegalArgumentException: Unable to find program using key: PMTCT Combined Clinic - Infant