If you have problems using the default phpMyAdmin in your cPanel, you can install your own phpMyAdmin and access it using your domain name by following these steps:
public_htmldirectory. Select the file and then click on Extract
4.7.5, so the extracted folder name is phpMyAdmin-4.7.5-all-languages. Rename it to phpMyAdmin for ease of usage.
cPusername is yur cPanel username and dbusername is your database username. Do not confuse the database name with the database username. An example for complete database username would be cpaneluser_wordpress
You should now have access to all the databases the user you logged in with has access to. The only downside of this method is that you cannot view all the databases from this page. A workaround would be to create a new database user and add it to all the databases. This way, you can manage all the databases with the user