获取 licenseReportCounter() 异常，同时启动 Jasper 报告

I am getting a licenseReportCounter() exception when starting a Jasper report.

Jasper\'s License was valid and not expired.

Exception:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name \'heartbeatTrigger\' defined in ServletContext resource [/WEB-INF/applicationContext-logging.xml]: Cannot resolve reference to bean \'heartbeatJob\' while setting bean property \'jobDetail\'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name \'heartbeatJob\' defined in ServletContext resource [/WEB-INF/applicationContext-logging.xml]: Cannot resolve reference to bean \'heartbeatBean\' while setting bean property \'targetObject\'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name \'heartbeatBean\' defined in ServletContext resource [/WEB-INF/applicationContext-logging.xml]: Cannot resolve reference to bean \'heartbeatProContributor\' while setting bean property \'contributor\'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name \'heartbeatProContributor\' defined in ServletContext resource [/WEB-INF/applicationContext-logging-pro.xml]: Cannot resolve reference to bean \'licenseReportCounter\' while setting bean property \'licenseReportCounter\'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name \'licenseReportCounter\' defined in class path resource [com/jaspersoft/ji/license/ApplicationContextLicenseConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public com.jaspersoft.ji.license.LicenseReportCounter com.jaspersoft.ji.license.ApplicationContextLicenseConfiguration.licenseReportCounter()] threw exception; nested exception is java.lang.NumberFormatException: For input string: \"\" at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328

Jasper was running on a WebLogic server. I tried restarting the WebLogic server by stopping all the backend processes. But it did not work. I am not able to retrieve the reports via the Front end.