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Warning: Trying to access array offset on value of type null in /var/www/html/mun/qr/qr_show.php on line 8

Fatal error: Uncaught TypeError: Defr\QRPlatba\QRPlatba::setAccount(): Argument #1 ($account) must be of type string, null given, called in /var/www/html/mun/qr/qr_show.php on line 8 and defined in /var/www/html/mun/vendor/dfridrich/qr-platba/src/QRPlatba.php:220 Stack trace: #0 /var/www/html/mun/qr/qr_show.php(8): Defr\QRPlatba\QRPlatba->setAccount() #1 {main} thrown in /var/www/html/mun/vendor/dfridrich/qr-platba/src/QRPlatba.php on line 220