Fatal error: Uncaught Mpdf\MpdfException: Temporary files directory "/opt/www/projekti/canvas.projekti.info/matematika_naloge/tmp/ttfontdata" is not writable in /opt/www/projekti/canvas.projekti.info/matematika_naloge/vendor/mpdf/mpdf/src/Cache.php:23 Stack trace: #0 /opt/www/projekti/canvas.projekti.info/matematika_naloge/vendor/mpdf/mpdf/src/Mpdf.php(982): Mpdf\Cache->__construct() #1 /opt/www/projekti/canvas.projekti.info/matematika_naloge/sestevanje.php(47): Mpdf\Mpdf->__construct() #2 {main} thrown in /opt/www/projekti/canvas.projekti.info/matematika_naloge/vendor/mpdf/mpdf/src/Cache.php on line 23