This component has a database checker onboard, this way you will always be able to get the latest database checked against our databases. Sometimes Joomla is not updating the tables correctly and this way you exactly know what actios needs to be taken to get your database up2date.
At the top of the page you will see a dropdown menu to change tables. When your tables are incorrect, you will see a notice on the right of the side.
When an error is shown at the right side of the page, you can go to PHP MyAdmin were the site is being hosted and execute the erros you see. This can be done one-by-one or as a batch. Afterwards you still need to check if you did it right, so perform the same check again after you have executed the queries.