Reactivating WordPress Jetpack plugin throws an error

Solution:

This solution worked for me:

  1. Deactivate and Delete Jetpack plugin
  2. Go to your PHPMyAdmin
  3. Run the SQL Query : SELECT * FROM `wp_options` WHERE `option_name` LIKE '%jetpack_%'
  4. Delete the items that start with the option_name jetpack_
  5. Download and Install Jetpack.

You should now be able to connect JetPack without any errors.