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Hello, has anyone idea what could cause this error?

Fatal error: Uncaught Error: Call to undefined function wp_kses() in D:\Sites\web_4156955686121573137396862\www\wp-content\db.php:28 Stack trace: #0 D:\Sites\web_4156955686121573137396862\www\wp-includes\load.php(666): require_once() #1 D:\Sites\web_4156955686121573137396862\www\wp-settings.php(124): require_wp_db() #2 D:\Sites\web_4156955686121573137396862\www\wp-config.php(93): require_once(‘D:\\Sites\\web_41…’) #3 D:\Sites\web_4156955686121573137396862\www\wp-load.php(50): require_once(‘D:\\Sites\\web_41…’) #4 D:\Sites\web_4156955686121573137396862\www\wp-admin\admin.php(34): require_once(‘D:\\Sites\\web_41…’) #5 D:\Sites\web_4156955686121573137396862\www\wp-admin\index.php(10): require_once(‘D:\\Sites\\web_41…’) #6 {main} thrown in D:\Sites\web_4156955686121573137396862\www\wp-content\db.php on line 28

thank you in advance for any idea

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