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Fatal error: Uncaught ValueError: imagecreatetruecolor(): Argument #1 ($width) must be greater than 0 in /var/www/html/pwa.php:14 Stack trace: #0 /var/www/html/pwa.php(14): imagecreatetruecolor(0, 0) #1 {main} thrown in /var/www/html/pwa.php on line 14