Fatal error: Uncaught exception 'RuntimeException' with message 'The exit status code '127' says something went wrong: stderr: "sh: 1: /usr/local/bin/wkhtmltopdf: not found " stdout: "" command: /usr/local/bin/wkhtmltopdf --lowquality '/tmp/knp_snappy66f8ba38039813.46812850.html' '/var/www/agrotrac.lv/live/veikals//downloads/all_products/All_model_8155_products.pdf'.' in /var/www/agrotrac.lv/live/veikals/vendor/knplabs/knp-snappy/src/Knp/Snappy/AbstractGenerator.php:336 Stack trace: #0 /var/www/agrotrac.lv/live/veikals/vendor/knplabs/knp-snappy/src/Knp/Snappy/AbstractGenerator.php(151): Knp\Snappy\AbstractGenerator->checkProcessStatus(127, NULL, 'sh: 1: /usr/loc...', '/usr/local/bin/...') #1 /var/www/agrotrac.lv/live/veikals/vendor/knplabs/knp-snappy/src/Knp/Snappy/Pdf.php(62): Knp\Snappy\AbstractGenerator->generate(Array, '/var/www/agrotr...', Array, false) #2 /var/www/agrotrac.lv/live/veikals/vendor/knplabs/knp-snappy/src/Knp/Snappy/AbstractGenerator.php(170): Knp\Snappy\Pdf->generate(Array, '/var/www/agrotr...', Array, in /var/www/agrotrac.lv/live/veikals/vendor/knplabs/knp-snappy/src/Knp/Snappy/AbstractGenerator.php on line 336