Fatal error: Allowed memory size

Hi,

After installation I tried to use this plugin, however, I always get following error message:

Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 12288 bytes) in /var/www/url/public_html/wp-includes/class-wpdb.php on line 2425

In wp-config.php file:

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', true );
@ini_set( 'display_errors', 0 );
@ini_set('error_reporting', E_ALL );
define ( 'WP_MEMORY_LIMIT', '128M' );
define( 'WP_AUTO_UPDATE_CORE', true );

In php.ini file:

memory_limit = 512M