Object returned by the following call stack is null. ListItemAllFields AddWithOverwrite Folders

I am working on Migration tool using SharePoint CSOM from file system to sharepoint, Everything was working fine until now i face new exception on some of the folder as mentioned below.

Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. ListItemAllFields AddWithOverwrite Folders at Microsoft.SharePoint.Client.ClientRequest.ProcessResponseStream(Stream responseStream) at Microsoft.SharePoint.Client.ClientRequest.ProcessResponse()

on below line

CreatedFolder = ParentSPFolder.Folders.AddWithOverwrite(DestPath, true); 

I have already read below questions but not matching my case.

Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. \"File\r\n\"

Server Exception : Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. \“File\r\n\”

Can you please guide me whats wrong with the code.

Thank You.