Exception::::Symfony\Component\Process\Exception\RuntimeException Object
(
    [message:protected] => Unable to launch a new process.
    [string:Exception:private] => 
    [code:protected] => 0
    [file:protected] => /var/www/html/pdf_new/chrome/vendor/symfony/process/Process.php
    [line:protected] => 355
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /var/www/html/pdf_new/chrome/vendor/chrome-php/chrome/src/Browser/BrowserProcess.php
                    [line] => 134
                    [function] => start
                    [class] => Symfony\Component\Process\Process
                    [type] => ->
                )

            [1] => Array
                (
                    [file] => /var/www/html/pdf_new/chrome/vendor/chrome-php/chrome/src/BrowserFactory.php
                    [line] => 82
                    [function] => start
                    [class] => HeadlessChromium\Browser\BrowserProcess
                    [type] => ->
                )

            [2] => Array
                (
                    [file] => /var/www/html/pdf_new/index.php
                    [line] => 76
                    [function] => createBrowser
                    [class] => HeadlessChromium\BrowserFactory
                    [type] => ->
                )

        )

    [previous:Exception:private] => 
)
<strong>Предупреждение:</strong> Undefined variable $browser в файле /var/www/html/pdf_new/index.php (строка 91)<strong>Предупреждение:</strong> Undefined variable $browser в файле /var/www/html/pdf_new/index.php (строка 117)Exception: Call to a member function close() on null