<br />
<b>Fatal error</b>:  Uncaught Error: Class 'Twig\Lexer' not found in /var/www/html/system/storage/vendor/twig/twig/src/Environment.php:539
Stack trace:
#0 /var/www/html/system/storage/vendor/twig/twig/src/Environment.php(595): Twig\Environment-&gt;tokenize(Object(Twig\Source))
#1 /var/www/html/system/storage/vendor/twig/twig/src/Environment.php(408): Twig\Environment-&gt;compileSource(Object(Twig\Source))
#2 /var/www/html/system/storage/vendor/twig/twig/src/Environment.php(381): Twig\Environment-&gt;loadClass('__TwigTemplate_...', 'default/templat...', NULL)
#3 /var/www/html/system/storage/vendor/twig/twig/src/Environment.php(359): Twig\Environment-&gt;loadTemplate('default/templat...')
#4 /var/www/html/system/storage/vendor/twig/twig/src/Environment.php(318): Twig\Environment-&gt;load('default/templat...')
#5 /var/www/html/system/library/template/twig.php(39): Twig\Environment-&gt;render('default/templat...', Array)
#6 /var/www/html/system/library/template.php(51): Template\Twig-&gt;render('default/templat...', '&lt;!DOCTYPE html&gt;...')
#7 /var/www/html in <b>/var/www/html/system/storage/vendor/twig/twig/src/Environment.php</b> on line <b>539</b><br />