BDD connection establishment — Error in establishing the connection to the database
What does this error mean?
WordPress no longer manages to connect to MySQL or MariaDB.
Probable causes
- Invalid wp-config identifiers
- Base not available
- Quota exceeded
- Damaged tables
Verification and resolution
- Check for DB_NAME, DZ_USER, DZ_PASSWORD and DZ_HOST
- Control the MySQL status
- Checking allowances
- Repair tables only after backup
Precaution: Never communicate the full content of wp-config.php.