here is the error message that I am getting!
please help
thanks
[Fri Apr 22 14:14:18 2016] [ow_core_log] [Exception] Message: Syntax error in template "file:/home/oiam2/public_html/ow_plugins/billing_2checkout/views/controllers/order_form.html" on line 3 "<input type="hidden" name="sid" value="{$fields.sid}" />" Security: access to constants not permitted File: /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php Line:3 Trace: [#0 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_security.php(479): Smarty_Internal_TemplateCompilerBase->trigger_template_error('Security: acces...') | #1 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templateparser.php(2245): Smarty_Security->isTrustedConstant('sid', Object(Smarty_Internal_SmartyTemplateCompiler)) | #2 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templateparser.php(2687): Smarty_Internal_Templateparser->yy_r127() | #3 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templateparser.php(2782): Smarty_Internal_Templateparser->yy_reduce(127) | #4 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_smartytemplatecompiler.php(114): Smarty_Internal_Templateparser->doParse(11, '}') | #5 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php(392): Smarty_Internal_SmartyTemplateCompiler->doCompile('\n<form id="{$fo...', true) | #6 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php(329): Smarty_Internal_TemplateCompilerBase->compileTemplateSource(Object(Smarty_Internal_Template), NULL, NULL) | #7 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(236): Smarty_Internal_TemplateCompilerBase->compileTemplate(Object(Smarty_Internal_Template)) | #8 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(123): Smarty_Template_Compiled->compileTemplateSource(Object(Smarty_Internal_Template)) | #9 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(193): Smarty_Template_Compiled->process(Object(Smarty_Internal_Template)) | #10 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(159): Smarty_Template_Compiled->render(Object(Smarty_Internal_Template)) | #11 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(191): Smarty_Internal_Template->render(false, 0) | #12 /home/oiam2/public_html/ow_libraries/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(94): Smarty_Internal_TemplateBase->_execute('/home/oiam2/pub...', NULL, NULL, NULL, 0) | #13 /home/oiam2/public_html/ow_core/view_renderer.php(101): Smarty_Internal_TemplateBase->fetch('/home/oiam2/pub...') | #14 /home/oiam2/public_html/ow_core/renderable.php(271): OW_ViewRenderer->renderTemplate('/home/oiam2/pub...') | #15 /home/oiam2/public_html/ow_core/request_handler.php(274): OW_Renderable->render() | #16 /home/oiam2/public_html/ow_core/application.php(364): OW_RequestHandler->dispatch() | #17 /home/oiam2/public_html/index.php(88): OW_Application->handleRequest() | #18 {main}]