Jira TestKit 500 error

Hello,
I properly configured my Jira Test Kit. I think so, that I can send GET requests and get info about my local instance. Problem is when I tried to make another request. for example

Backdoor testKit = new Backdoor(new TestKitLocalEnvironmentData());
testKit.usersAndGroups().loginAs(“admin”).addUser(“test321”, “test321”, “test321”, “test@ga.com”);

*[INFO] [talledLocalContainer] 2019-05-27 11:39:30,935 http-nio-2990-exec-15 ERROR admin 699x677x1 1gb75bc 127.0.0.1 /rest/testkit-test/1.0/usersAndGroups/user/add [c.a.p.r.c.error.jersey.ThrowableExceptionMapper] Uncaught exception*
*thrown by REST service: com.atlassian.jira.user.util.UserUtil.createUserNoNotification(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Lcom/atlassian/crowd/embedded/api/User;*
*[INFO] [talledLocalContainer] java.lang.NoSuchMethodError: com.atlassian.jira.user.util.UserUtil.createUserNoNotification(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Lcom/atlassian/crowd/embedded/api/Use*
*r;*
*[INFO] [talledLocalContainer] at com.atlassian.jira.testkit.plugin.UsersAndGroupsBackdoor.addUser(UsersAndGroupsBackdoor.java:124)*
*[INFO] [talledLocalContainer] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)*
*[INFO] [talledLocalContainer] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)*
*[INFO] [talledLocalContainer] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)*
*[INFO] [talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:498)*
*[INFO] [talledLocalContainer] ... 19 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:154)*
*[INFO] [talledLocalContainer] ... 1 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:68)*
*[INFO] [talledLocalContainer] ... 41 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)*
*[INFO] [talledLocalContainer] ... 24 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.labs.httpservice.resource.ResourceFilter.doFilter(ResourceFilter.java:59)*
*[INFO] [talledLocalContainer] ... 32 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.jira.security.JiraSecurityFilter.lambda$doFilter$0(JiraSecurityFilter.java:66)*
*[INFO] [talledLocalContainer] ... 1 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:64)*
*[INFO] [talledLocalContainer] ... 16 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:37)*
*[INFO] [talledLocalContainer] ... 19 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)*
*[INFO] [talledLocalContainer] ... 10 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)*
*[INFO] [talledLocalContainer] ... 4 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.web.servlet.plugin.LocationCleanerFilter.doFilter(LocationCleanerFilter.java:36)*
*[INFO] [talledLocalContainer] ... 26 filtered*
*[INFO] [talledLocalContainer] at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)*
*[INFO] [talledLocalContainer] ... 23 filtered*
*[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)*
*[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)*
*[INFO] [talledLocalContainer] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)*
*[INFO] [talledLocalContainer] at java.lang.Thread.run(Thread.java:748)*

Maybe you have an incompatible version of Testkit compared to your Jira version?