Errors when upgrading to 3.2 Enterprise

This error appears when upgrading to 3.2 Enterprise by pointing JIRA to the existing 2.5.3 Professional database

2005-05-16 13:00:05,375 ERROR [atlassian.jira.upgrade.UpgradeManagerImpl] Exception thrown during upgrade: null
java.lang.NullPointerException
at com.atlassian.jira.upgrade.tasks.UpgradeTask_Build83.doUpgrade(UpgradeTask_Build83.java:72)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeTaskSucess(UpgradeManagerImpl.java:669)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.runUpgradeTasks(UpgradeManagerImpl.java:565)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.doEditionUpgrade(UpgradeManagerImpl.java:508)
at com.atlassian.jira.web.action.admin.SetupLicense.doExecute(SetupLicense.java:103)
at webwork.action.ActionSupport.execute(ActionSupport.java:153)
at com.atlassian.jira.action.JiraActionSupport.execute(JiraActionSupport.java:46)
at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:131)
at com.atlassian.jira.web.dispatcher.JiraServletDispatcher.service(JiraServletDispatcher.java:186)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.java:96)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:142)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:58)
at com.atlassian.jira.web.filters.SitemeshExcludePathFilter.doFilter(SitemeshExcludePathFilter.java:38)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:168)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.jira.web.filters.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:25)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.jira.web.filters.ActionCleanupDelayFilter.doFilter(ActionCleanupDelayFilter.java:37)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:91)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.jira.web.filters.gzip.GzipFilter.doFilter(GzipFilter.java:72)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:36)
at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:246)
at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:164)
at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
at java.lang.Thread.run(Thread.java:534)

On restart:
2005-05-16 13:02:26,312 ERROR [atlassian.jira.upgrade.UpgradeManagerImpl] Exception thrown during upgrade: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:FieldScreen][description,Allows to update all system fields.][name,Default Screen][id,1] (SQL Exception while executing the following:INSERT INTO fieldscreen (ID, NAME, DESCRIPTION) VALUES (?, ?, ?) (Violation of unique index: PK_FIELDSCREEN in statement [INSERT INTO fieldscreen (ID, NAME, DESCRIPTION) VALUES (1, 'Default Screen', 'Allows to update all system fields.')]))
com.atlassian.jira.exception.DataAccessException: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:FieldScreen][description,Allows to update all system fields.][name,Default Screen][id,1] (SQL Exception while executing the following:INSERT INTO fieldscreen (ID, NAME, DESCRIPTION) VALUES (?, ?, ?) (Violation of unique index: PK_FIELDSCREEN in statement [INSERT INTO fieldscreen (ID, NAME, DESCRIPTION) VALUES (1, 'Default Screen', 'Allows to update all system fields.')]))
at com.atlassian.jira.ofbiz.DefaultOfBizDelegator.createValue(DefaultOfBizDelegator.java:153)
at com.atlassian.jira.issue.fields.screen.DefaultFieldScreenStore.createFieldScreen(DefaultFieldScreenStore.java:65)
at com.atlassian.jira.issue.fields.screen.CachingFieldScreenStore.createFieldScreen(CachingFieldScreenStore.java:41)
at com.atlassian.jira.issue.fields.screen.DefaultFieldScreenManager.createFieldScreen(DefaultFieldScreenManager.java:59)
at com.atlassian.jira.issue.fields.screen.FieldScreenImpl.store(FieldScreenImpl.java:185)
at com.atlassian.jira.upgrade.tasks.UpgradeTask_Build83.doUpgrade(UpgradeTask_Build83.java:68)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeTaskSucess(UpgradeManagerImpl.java:669)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.runUpgradeTasks(UpgradeManagerImpl.java:565)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgrade(UpgradeManagerImpl.java:393)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeIfNeeded(UpgradeManagerImpl.java:341)
at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeIfNeededAndAllowed(UpgradeManagerImpl.java:301)
at com.atlassian.jira.upgrade.UpgradeLauncher.contextInitialized(UpgradeLauncher.java:65)
at com.caucho.server.http.Application.init(Application.java:1843)
at com.caucho.server.http.VirtualHost.init(VirtualHost.java:728)
at com.caucho.server.http.ServletServer.initHosts(ServletServer.java:874)
at com.caucho.server.http.ServletServer.initInternal(ServletServer.java:719)
at com.caucho.server.http.ServletServer.init(ServletServer.java:530)
at com.caucho.server.http.ResinServer.init(ResinServer.java:393)
at com.caucho.server.http.ResinServer.main(ResinServer.java:1154)
at com.caucho.server.http.HttpServer.main(HttpServer.java:103)
Caused by: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:FieldScreen][description,Allows to update all system fields.][name,Default Screen][id,1] (SQL Exception while executing the following:INSERT INTO fieldscreen (ID, NAME, DESCRIPTION) VALUES (?, ?, ?) (Violation of unique index: PK_FIELDSCREEN in statement [INSERT INTO fieldscreen (ID, NAME, DESCRIPTION) VALUES (1, 'Default Screen', 'Allows to update all system fields.')]))
at org.ofbiz.core.entity.GenericDAO.singleInsert(GenericDAO.java:123)
at org.ofbiz.core.entity.GenericDAO.insert(GenericDAO.java:88)
at org.ofbiz.core.entity.GenericHelperDAO.create(GenericHelperDAO.java:63)
at org.ofbiz.core.entity.GenericDelegator.create(GenericDelegator.java:470)
at org.ofbiz.core.entity.GenericDelegator.create(GenericDelegator.java:450)
at org.ofbiz.core.entity.GenericValue.create(GenericValue.java:77)
at com.atlassian.core.ofbiz.util.EntityUtils.createValue(EntityUtils.java:61)
at com.atlassian.jira.ofbiz.DefaultOfBizDelegator.createValue(DefaultOfBizDelegator.java:149)
... 19 more