Se posso essere di aiuto in qualche modo, fammi sapere.
intanto ti passo i log di nginx al momento dell'errore....magari ti può aiutare.
PHP message: PHP Notice: Trying to get property of non-object in /var/www/shop/var/cache/prod/smarty/compile/16/d6/e1/16d6e169f2e2f213b835f599304771574b596a72_2.file.order.tpl.php on line 42
PHP message: PHP Fatal error: Uncaught Error: Call to a member function getPageLink() on null in /var/www/shop/var/cache/prod/smarty/compile/16/d6/e1/16d6e169f2e2f213b835f599304771574b596a72_2.file.order.tpl.php:42
Stack trace:
#0 /var/www/shop/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_5ea93f928a90a6_87499102(Object(SmartyCustomTemplate))
#1 /var/www/shop/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode(Object(SmartyCustomTemplate))
#2 /var/www/shop/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(216): Smarty_Template_Compiled->render(Object(SmartyCustomTemplate))
#3 /var/www/shop/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(232): Smarty_Internal_Template->render(false, 0)
#4 /var/www/shop/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(116): Smarty_Internal_TemplateBase->_execute(Object(SmartyCustomTemplate), NULL, NULL," while reading response header from upstream, client: 79.27.108.15, server: ********, request: "POST /it/module/amzpayments/amzpayments?session=&rand=1588159907831 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.0-fpm.sock:", host: "*****************", referrer: "https://***************/it/module/amzpayments/amzpayments?session=P02-9890856-4102542&toCheckout=1"