The error “session object destruction failed in [path]” usually indicates incorrect permissions on the session save directory.
Solution:
1. Locate session.save_path = "path" in php.ini, and grant the IIS user read, write, and modify permissions on that directory.
2. Check whether the website root directory and the system temp directory c:/windows/temp have write permissions.
If you are using IIS, you can also try switching to a different application pool.