Unable to modify navigation - Add heading/link

Issue Description:
When I Try to modify Navigation in a site and add a heading, this is not working. When pushing OK, there is nor error messages appearing, but the heading is not showing up.

Solution Description:

Use Following Command to Fix the issue:

use Content Database Name

INSERT INTO [NavNodes] ([SiteId] ,[WebId] ,[Eid] ,[EidParent] ,[NumChildren] ,[RankChild] ,[ElementType] ,[Url] ,[DocId] ,[Name] ,[DateLastModified] ,[NodeMetainfo] , [NonNavPage] ,[NavSequence] ,[ChildOfSequence])

SELECT DISTINCT SiteId, WebId ,1002 ,0 ,0 ,1 ,1 ,'' ,NULL ,'SharePoint Top Navbar' ,getdate() ,NULL ,0 ,1 ,0
FROM NavNodes
WHERE WebId NOT IN (
SELECT WebId
FROM NavNodes
WHERE Eid = 1002)