[xwiki-users] How to solve a HTTP Status 500 error?

What do I need to check when I get below error page when going to http://localhost:8080/xwiki? My setup is XWiki with GlassFish and Microsoft SQL Server. Thanks in advance! HTTP Status 500 - -------------------------------------------------------------------------------- type Exception report message descriptionThe server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3001 in 3: Cannot load class com.xpn.xwiki.store.migration.hibernate.XWikiHibernateMigrationManager from param xwiki.store.migration.manager.class Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: resource: xwiki.mssql.hbm.xml not found root cause com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3001 in 3: Cannot load class com.xpn.xwiki.store.migration.hibernate.XWikiHibernateMigrationManager from param xwiki.store.migration.manager.class Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: resource: xwiki.mssql.hbm.xml not found note The full stack traces of the exception and its root causes are available in the Sun Java System Application Server 9.1_01 logs. -------------------------------------------------------------------------------- Sun Java System Application Server 9.1_01