Groups defined at Tuleap side appears in red and show details gives a stacktrace

Stacktrace
java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because the return value of "io.jenkins.plugins.tuleap_api.client.UserGroup.getGroupName()" is null
at PluginClassLoader for tuleap-oauth//io.jenkins.plugins.tuleap_oauth.helper.TuleapGroupHelper.lambda$groupExistsOnTuleapServer$0(TuleapGroupHelper.java:48)
at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90)
at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1685)
at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:632)
at PluginClassLoader for tuleap-oauth//io.jenkins.plugins.tuleap_oauth.helper.TuleapGroupHelper.groupExistsOnTuleapServer(TuleapGroupHelper.java:48)
at PluginClassLoader for tuleap-oauth//io.jenkins.plugins.tuleap_oauth.TuleapSecurityRealm.loadGroupByGroupname2(TuleapSecurityRealm.java:242)
at PluginClassLoader for matrix-auth//org.jenkinsci.plugins.matrixauth.ValidationUtil.validateGroup(ValidationUtil.java:118)
at PluginClassLoader for matrix-auth//org.jenkinsci.plugins.matrixauth.AuthorizationContainerDescriptor.doCheckName_(AuthorizationContainerDescriptor.java:210)
at PluginClassLoader for matrix-auth//hudson.security.GlobalMatrixAuthorizationStrategy$DescriptorImpl.doCheckName(GlobalMatrixAuthorizationStrategy.java:226)
at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:733)
at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:484)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:497)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:218)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:140)
at org.kohsuke.stapler.MetaClass$12.doDispatch(MetaClass.java:686)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:61)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:800)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
at org.kohsuke.stapler.MetaClass$5.doDispatch(MetaClass.java:369)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:61)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:800)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:871)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
at org.kohsuke.stapler.MetaClass$10.dispatch(MetaClass.java:590)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:800)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:721)
at org.kohsuke.stapler.Stapler.service(Stapler.java:253)
at Jenkins Main ClassLoader//jakarta.servlet.http.HttpServlet.service(HttpServlet.java:587)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHolder.handle(ServletHolder.java:780)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1668)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:204)
at PluginClassLoader for sse-gateway//org.jenkinsci.plugins.ssegateway.Endpoint$SSEListenChannelFilter.doFilter(Endpoint.java:248)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
at PluginClassLoader for blueocean-web//io.jenkins.blueocean.ResourceCacheControl.doFilter(ResourceCacheControl.java:134)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
at PluginClassLoader for blueocean-jwt//io.jenkins.blueocean.auth.jwt.impl.JwtAuthenticationFilter.doFilter(JwtAuthenticationFilter.java:60)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
at PluginClassLoader for metrics//jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
at jenkins.util.HttpServletFilter$1.doFilter(HttpServletFilter.java:77)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:207)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at jenkins.ErrorAttributeFilter.doFilter(ErrorAttributeFilter.java:29)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:160)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:94)
at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:54)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:125)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:114)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:105)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:235)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:229)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:106)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:117)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:63)
at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
at hudson.security.ChainedServletFilter2.doFilter(ChainedServletFilter2.java:111)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:173)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at org.kohsuke.stapler.UncaughtExceptionFilter.doFilter(UncaughtExceptionFilter.java:26)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:86)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:31)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:38)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler.doHandle(ServletHandler.java:526)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.handle(ScopedHandler.java:127)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.security.SecurityHandler.handle(SecurityHandler.java:574)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HandlerWrapper.handle(HandlerWrapper.java:124)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextHandle(ScopedHandler.java:197)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.SessionHandler.doHandle(SessionHandler.java:612)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextHandle(ScopedHandler.java:195)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler.doHandle(ContextHandler.java:1045)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextScope(ScopedHandler.java:164)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler.doScope(ServletHandler.java:483)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextScope(ScopedHandler.java:162)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.SessionHandler.doScope(SessionHandler.java:589)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextScope(ScopedHandler.java:162)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler.doScope(ContextHandler.java:966)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.handle(ScopedHandler.java:125)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler.handle(ContextHandler.java:1719)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1565)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HttpChannel.dispatch(HttpChannel.java:724)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HttpChannel.handle(HttpChannel.java:512)
at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler$CoreContextHandler$CoreToNestedHandler.handle(ContextHandler.java:3029)
at Jenkins Main ClassLoader//org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1071)
at Jenkins Main ClassLoader//org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:611)
at Jenkins Main ClassLoader//org.eclipse.jetty.server.Server.handle(Server.java:182)
at Jenkins Main ClassLoader//org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:677)
at Jenkins Main ClassLoader//org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:416)
at Jenkins Main ClassLoader//org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322)
at Jenkins Main ClassLoader//org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
at Jenkins Main ClassLoader//org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:480)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:443)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:201)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:311)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:981)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1211)
at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1166)
at java.base/java.lang.Thread.run(Thread.java:1583)