Unable to run modelupdate command in Windchill shell

Exception in thread "main" java.lang.ExceptionInInitializerError
	at com.ptc.wbr.core._WBRReportingSystem._valueSet(_WBRReportingSystem.java:17)
	at com.ptc.wbr.core._WBRReportingSystem.toWBRReportingSystem(_WBRReportingSystem.java:28)
	at com.ptc.wbr.core.WBRReportingSystem.<clinit>(WBRReportingSystem.java:27)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:315)
	at com.sun.proxy.$Proxy5.<clinit>(Unknown Source)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at java.base/java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1022)
	at java.base/java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1008)
	at wt.services.ServiceFactory$Singleton.getImplementation(ServiceFactory.java:125)
	at wt.services.ServiceFactory.getService(ServiceFactory.java:109)
	at com.ptc.windchill.enterprise.report.ReportHelper.<clinit>(ReportHelper.java:115)
Caused by: java.util.MissingResourceException: com.ptc.wbr.core.WBRReportingSystemRB_en_IN: invalid stream header: 3C3F786D
	at wt.util.resource.SerializedResourceBundle.getSerializedBundle(SerializedResourceBundle.java:237)
	at wt.util.resource.SerializedBundleFactory.getBundle(SerializedBundleFactory.java:39)
	at wt.util.resource.ResourceBundleFactory.getBundle(ResourceBundleFactory.java:89)
	at wt.fc.EnumeratedType.instantiateSet(EnumeratedType.java:295)
	at com.ptc.wbr.core._WBRReportingSystem.initializeLocaleSet(_WBRReportingSystem.java:65)
	at com.ptc.wbr.core._WBRReportingSystem._valueSet(_WBRReportingSystem.java:16)
	... 14 more