Solution:
This solution worked for me:
- Deactivate and Delete Jetpack plugin
- Go to your PHPMyAdmin
- Run the SQL Query :
SELECT * FROM `wp_options` WHERE `option_name` LIKE '%jetpack_%'
- Delete the items that start with the option_name
jetpack_
- Download and Install Jetpack.
You should now be able to connect JetPack without any errors.