Gadget Grouped filter results not working anymore jira server 8.2.3

[Rafał Żydek]

As an admin I see that gadget Grouped filter results not working anymore.

On Gadget configuration we got error: "An internal server error occurred when requesting resource ."
On the Chrome console, error 500 here:  [baseurl]/rest/filteredtreeissues/1.0/data/getIssuesTree.json?jql=project+%3D+%27Collaboration...........

When I try to get data from this restpoint, I've got stack trace:

{"message":"com.atlassian.jira.issue.search.SearchResults.getIssues()Ljava/util/List;","status-code":500,"stack-trace":"java.lang.NoSuchMethodError: com.atlassian.jira.issue.search.SearchResults.getIssues()Ljava/util/List;\n\tat ru.dellin.jira.portlet.TreeIssueFilterResultsPortlet.PortletGateway.getIssues(PortletGateway.java:395)\n\tat ru.dellin.jira.portlet.TreeIssueFilterResultsPortlet.PortletGateway.getIssuesTree(PortletGateway.java:185)\n\tat sun.reflect.GeneratedMethodAccessor4075.invoke(Unknown Source)\n\tat sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)\n\tat java.lang.reflect.Method.invoke(Unknown Source)\n\tat com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$ResponseOutInvoker$1.invoke(DispatchProviderHelper.java:192)\n\tat com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$1.intercept(DispatchProviderHelper.java:83)\n\tat com.atlassian.plugins.rest.common.interceptor.impl.DefaultMethodInvocation.invoke(DefaultMethodInvocation.java:53)\n\tat com.atlassian.plugins.rest.common.expand.interceptor.ExpandInterceptor.intercept(ExpandInterceptor.java:41)\n\tat com.atlassian.plugins.rest.common.interceptor.impl.DefaultMethodInvocation.invoke(DefaultMethodInvocation.java:53)\n\tat com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper.invokeMethodWithInterceptors(DispatchProviderHelper.java:110)\n\tat com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$ResponseOutInvoker._dispatch(DispatchProviderHelper.java:190)\n\tat com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)\n\tat com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)\n\tat com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)\n\tat com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)\n\tat com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)\n\tat com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)\n\tat com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)\n\tat com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)\n\tat com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)\n\tat com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)\n\tat com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)\n\tat com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)\n\tat com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:159)\n\tat com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:829)\n\tat com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:69)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:55)\n\tat com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:43)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat com.atlassian.plugins.rest.module.servlet.RestServletUtilsUpdaterFilter.doFilterInternal(RestServletUtilsUpdaterFilter.java:22)\n\tat com.atlassian.plugins.rest.module.servlet.RestServletUtilsUpdaterFilter.doFilter(RestServletUtilsUpdaterFilter.java:34)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:62)\n\tat com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)\n\tat com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.lambda$doFilter$0(DelegatingPluginFilter.java:57)\n\tat