Error on opening Localization page in MII 15

We have recently installed MII 15 on multiple servers. On the Development system, when we try to Open the Localization page from the MII Menu (System Management --> Localization), the page throws Internal Server 500 Error. It however works fine on other servers.

Netweaver 7.4 SP8 (same on all servers)

MII 15 SP3 (same on all servers)

Any pointers on how to resolve this issue will be helpful. Below is the error message received on Dev Server:

500   Internal Server Error

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SAP NetWeaver Application Server/Java AS

The initial exception that
caused the request to fail, was:

java.lang.NullPointerException:
while trying to invoke the method
com.sap.xapps.xmii.ui.admin.syscfg.syscfgcomp.sysconfigcomp.wdp.IPrivateLocalization$ILocalizationEntryElement.getName()
of a null object returned from
com.sap.xapps.xmii.ui.admin.syscfg.syscfgcomp.sysconfigcomp.wdp.IPrivateLocalization$IContextNode.currentLocalizationEntryElement()

    at

com.sap.xapps.xmii.ui.admin.syscfg.syscfgcomp.sysconfigcomp.Localization.wdDoModifyView(Localization.java:194)

    at

com.sap.xapps.xmii.ui.admin.syscfg.syscfgcomp.sysconfigcomp.wdp.InternalLocalization.wdDoModifyView(InternalLocalization.java:665)

    at

com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doModifyView(DelegatingView.java:94)

    at

com.sap.tc.webdynpro.progmodel.view.View.modifyView(View.java:746)

    at

com.sap.tc.webdynpro.progmodel.window.ViewController.modifyView(ViewController.java:254)

    ...

64 more

See full
exception chain for details.

Failed to process request.
Please contact your system administrator.

While processing the current request, an exception occured which could not be
handled by the application or the framework.

If the information contained on this page doesn't help you to find and
correct the cause of the problem, please contact your system administrator. To
facilitate analysis of the problem, keep a copy of this error page. Hint: Most
browsers allow to select all content, copy it and then paste it into an empty
document (e.g. email or simple text file).

For further information about the Web Dynpro error page, error analysis and a
description of well-known error situations, see SAP note 1113811.

Exception could be caused by the development component:
sap.com/xapps~xmii~ui~admin~navigation

Note: The above hints are only a guess. They are automatically derived
from the exception that occurred and therefore can't be guaranteed to address
the original problem in all cases.