Why can't connect to the database server?

Question

MySQL

When installing MODX Rev on hosting, the following error occurs

Answer 1

repeat the same question to the technical support of the hosting

Answer 2

first you need to create a database, then specify the database server address, database name, username and password in this form

Answer 3

If the user / password and its rights are in order, then it is worth trying to clear the cache (clear the cache folder in core).
If the problem occurs when the site is transferred or when the database name is changed, you may need to make the appropriate changes in /your_core_path/config/config.inc.php .