SharePoint 2016 search application error

I'm using SharePoint 2016, 2 WFE/Distributed Cache servers, 2 Application/Search servers.

 

When I click Manage on my SharePoint Search Service Application, I get this error:

 

Error:  Sorry, something went wrong

System.InvalidOperationException: The search service is not able to connect to the machine that hosts the administration component. Verify that the administration component 'c01be3ff-ab29-4a47-8088-8U7a917d02c9' in search application 'SharePoint Search Service Application' is in a good state and try again.
   at Microsoft.Office.Server.Search.Administration.SearchApi..ctor(SearchServiceApplication application)
   at Microsoft.Office.Server.Search.Administration.SearchApiFactory.CreateSearchApi(SearchServiceApplication application)
   at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.get_SearchApi()
   at Microsoft.Office.Server.Search.Administration.ContentSourceCollection..ctor(Content parent)
   at Microsoft.Office.Server.Search.Administration.CrawlLog.GetCrawlStatisticsByContentSource()
   at Microsoft.Office.Server.Search.Internal.UI.CrawlLogContentSourcesPage.GetDataTable()
   at Microsoft.Office.Server.Search.Internal.UI.CrawlLogPageBase.InitializeGridView(Boolean isPostBack)
   at Microsoft.Office.Server.Search.Internal.UI.CrawlLogPageBase.OnPreRender(EventArgs e)
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)