Can not access "Settings | Pull requests" after upgrading to Stash 3.4.0

http://myserver/projects/TMA/repos/tempo/settings/pull-requests

2014-11-02 11:24:09,372 ERROR [http-nio-7990-exec-11] bjarnit @1IZ4RP5x684x16119x1 1b7fr3n 10.50.48.110 "GET /projects/TMA/repos/accounts/settings/pull-requests HTTP/1.1" c.a.s.i.w.HandlerExceptionResolverImpl In template widget.aui.form.checkbox: In 'print' tag, expression "$labelContent" evaluates to undefined.
com.google.template.soy.tofu.SoyTofuException: In template widget.aui.form.checkbox: In 'print' tag, expression "$labelContent" evaluates to undefined.
        at com.google.template.soy.tofu.internal.BaseTofu.renderMainHelper(BaseTofu.java:341) ~[na:na]
        at com.google.template.soy.tofu.internal.BaseTofu.renderMain(BaseTofu.java:300) ~[na:na]
        at com.google.template.soy.tofu.internal.BaseTofu.access$100(BaseTofu.java:56) ~[na:na]
        at com.google.template.soy.tofu.internal.BaseTofu$RendererImpl.render(BaseTofu.java:427) ~[na:na]
        at com.atlassian.soy.impl.DefaultSoyManager.render(DefaultSoyManager.java:118) ~[na:na]
        at com.atlassian.soy.impl.DefaultSoyTemplateRenderer.render(DefaultSoyTemplateRenderer.java:52) ~[na:na]
        at com.atlassian.soy.impl.DefaultSoyTemplateRenderer.render(DefaultSoyTemplateRenderer.java:45) ~[na:na]
        at com.atlassian.stash.unapprove.AutoUnapproveFormFragment.renderView(AutoUnapproveFormFragment.java:64) ~[na:na]
        at com.atlassian.stash.unapprove.AutoUnapproveFormFragment.doView(AutoUnapproveFormFragment.java:32) ~[na:na]
        at com.atlassian.stash.internal.plugin.PluginFormFragmentsFactoryImpl$PluginFormFragmentsImpl.getViewHtml(PluginFormFragmentsFactoryImpl.java:114) ~[PluginFormFragmentsFactoryImpl$PluginFormFragmentsImpl.class:na]
        at com.atlassian.stash.internal.web.admin.RepositoryAdminController.getPullRequestSettings(RepositoryAdminController.java:257) ~[RepositoryAdminController.class:na]
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:25) ~[na:na]
        at com.atlassian.stash.internal.spring.security.StashAuthenticationFilter.doFilter(StashAuthenticationFilter.java:86) ~[StashAuthenticationFilter.class:na]
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doInsideSpringSecurityChain(BeforeLoginPluginAuthenticationFilter.java:111) ~[BeforeLoginPluginAuthenticationFilter.class:na]
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:77) ~[BeforeLoginPluginAuthenticationFilter.class:na]
        at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:100) ~[TrustedApplicationsFilter.class:na]
        at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:69) ~[na:na]
        at com.hazelcast.web.WebFilter$RequestWrapper$1.forward(WebFilter.java:542) ~[WebFilter$RequestWrapper$1.class:3.3.2-atlassian-3]
        at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:100) ~[TrustedApplicationsFilter.class:na]
        at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:69) ~[na:na]
        at com.atlassian.analytics.client.filter.DefaultAnalyticsFilter.doFilter(DefaultAnalyticsFilter.java:33) ~[na:na]
        at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31) ~[AbstractHttpFilter.class:na]
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doBeforeBeforeLoginFilters(BeforeLoginPluginAuthenticationFilter.java:89) ~[BeforeLoginPluginAuthenticationFilter.class:na]
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:75) ~[BeforeLoginPluginAuthenticationFilter.class:na]
        at com.atlassian.stash.internal.request.DefaultRequestManager.doAsRequest(DefaultRequestManager.java:85) ~[DefaultRequestManager.class:na]
        at com.hazelcast.web.WebFilter.doFilter(WebFilter.java:463) ~[WebFilter.class:3.3.2-atlassian-3]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_25]
        at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25]
        ... 250 frames trimmed