MANUAL UPGRADE PROCEDURE
If you download new plugin version from CodeCanyon please follow these steps to upgrade from the existing version:
1. Go to your FTP and open WordPress plugins folder
2. Delete the old wpDataTables version folder
3. Upload the new version of wpDataTables
4. Go to WP-admin panel, open Plugins section.
5. Deactivate wpDataTables, and then activate it again.