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Warning: Trying to access array offset on value of type null in /var/www/html/certificate/appriciate.php on line 23

Warning: Undefined array key "file" in /var/www/html/certificate/appriciate.php on line 27

Warning: Trying to access array offset on value of type null in /var/www/html/certificate/appriciate.php on line 27

Fatal error: Uncaught ValueError: Path cannot be empty in /var/www/html/certificate/appriciate.php:27 Stack trace: #0 /var/www/html/certificate/appriciate.php(27): fopen() #1 {main} thrown in /var/www/html/certificate/appriciate.php on line 27