When checking the right sidebar, or the MySQL Databases icon in cPanel, an incorrect notification can be seen about the number of databases and disk usage for databases on the account.
This issue most often happens when a change is made to the account and the database cache maintenance cronjob has not had a chance to run.
You can check to make sure that the cronjob is in place with the following command:
# crontab -l | grep update_db_cache
In order to manually clear the database usage cache you can use the following command:
If the command ran successfully, it will produce no output. You should refresh the cPanel interface to verify that the cache has been updated.