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Fatal error: Uncaught TypeError: mysqli_fetch_array(): Argument #1 ($result) must be of type mysqli_result, bool given in D:\xampp\htdocs\VR\DelectUserByOpenid.php:20 Stack trace: #0 D:\xampp\htdocs\VR\DelectUserByOpenid.php(20): mysqli_fetch_array(true, 1) #1 {main} thrown in D:\xampp\htdocs\VR\DelectUserByOpenid.php on line 20