1951:20190116:044530.834 [Z3001] connection to database 'zabbix' failed: [1045] Access denied for user 'zabbix'@'localhost' (using password: YES)

global $DB;

$DB['TYPE']     = 'MYSQL';
$DB['SERVER']   = '127.0.0.1';
$DB['PORT']     = '0';
$DB['DATABASE'] = 'zabbixdb';
$DB['USER']     = 'zabbixuser';
$DB['PASSWORD'] = '[my_pass_here]';

// Schema name. Used for IBM DB2 and PostgreSQL.
$DB['SCHEMA'] = '';

$ZBX_SERVER      = '127.0.0.1';
$ZBX_SERVER_PORT = '10051';
$ZBX_SERVER_NAME = 'SV Zabbix Server';

$IMAGE_FORMAT_DEFAULT = IMAGE_FORMAT_PNG;

GRANT ALL PRIVILEGES ON `zabbixdb`.* TO 'zabbixuser'@'localhost'