Fatal error: Uncaught Error: Call to undefined function Twig\json_encode() in /home/almosthu/public_html/forum/vendor/twig/twig/src/ExtensionSet.php:116 Stack trace: #0 /home/almosthu/public_html/forum/vendor/twig/twig/src/Environment.php(983): Twig\ExtensionSet->getSignature() #1 /home/almosthu/public_html/forum/vendor/twig/twig/src/Environment.php(702): Twig\Environment->updateOptionsHash() #2 /home/almosthu/public_html/forum/vendor/twig/twig/src/Environment.php(128): Twig\Environment->addExtension(Object(Twig\Extension\CoreExtension)) #3 /home/almosthu/public_html/forum/phpbb/template/twig/environment.php(83): Twig\Environment->__construct(Object(phpbb\template\twig\loader), Array) #4 /home/almosthu/public_html/forum/cache/production/container_4335734bbdd20f586549a504dff5f80c.php(3884): phpbb\template\twig\environment->__construct(Object(phpbb\config\db), Object(phpbb\filesystem\filesystem), Object(phpbb\path_helper), './cache/product...', Object(phpbb\extension\manager), Object(phpbb\template\twig\loader), Object(phpb in /home/almosthu/public_html/forum/vendor/twig/twig/src/ExtensionSet.php on line 116