Fatal error: Uncaught Twig_Error_Syntax: Unknown "currency_format" function in "journal2/template/product/product.twig" at line 313. in /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php:574 Stack trace: #0 /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php(351): Twig_ExpressionParser->getFunctionNodeClass('currency_format', 313) #1 /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php(144): Twig_ExpressionParser->getFunctionNode('currency_format', 313) #2 /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php(84): Twig_ExpressionParser->parsePrimaryExpression() #3 /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php(41): Twig_ExpressionParser->getPrimary() #4 /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php(50): Twig_ExpressionParser->parseExpression(41) #5 /home/forge/lxavi in /home/forge/lxavionics.co.uk/opencart_clean/system/library/template/Twig/ExpressionParser.php on line 574