Fatal error: Uncaught Symfony\Component\ErrorHandler\Error\UndefinedFunctionError: Attempted to call function "highlight_file" from namespace "Symfony\Component\ErrorHandler\ErrorRenderer". in /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php:254
Stack trace:
#0 /data/www/smart/vendor/symfony/error-handler/Resources/views/trace.html.php(36): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->fileExcerpt()
#1 /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php(336): include('...')
#2 /data/www/smart/vendor/symfony/error-handler/Resources/views/traces.html.php(44): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->include()
#3 /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php(336): include('...')
#4 /data/www/smart/vendor/symfony/error-handler/Resources/views/exception.html.php(58): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->include()
#5 /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php(336): include('...')
#6 /data/www/smart/vendor/symfony/error-handler/Resources/views/exception_full.html.php(35): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->include()
#7 /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php(336): include('...')
#8 /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php(146): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->include()
#9 /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php(72): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->renderException()
#10 /data/www/smart/vendor/symfony/error-handler/ErrorHandler.php(653): Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer->render()
#11 /data/www/smart/vendor/symfony/error-handler/ErrorHandler.php(541): Symfony\Component\ErrorHandler\ErrorHandler->renderException()
#12 /data/www/smart/vendor/symfony/error-handler/ErrorHandler.php(557): Symfony\Component\ErrorHandler\ErrorHandler->handleException()
#13 [internal function]: Symfony\Component\ErrorHandler\ErrorHandler->handleException()
#14 {main}
thrown in /data/www/smart/vendor/symfony/error-handler/ErrorRenderer/HtmlErrorRenderer.php on line 254