#0 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templateparser.php(3519): Smarty_Internal_TemplateCompilerBase->trigger_template_error()
#1 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templateparser.php(3577): Smarty_Internal_Templateparser->yy_syntax_error(4, '\\')
#2 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_smartytemplatecompiler.php(128): Smarty_Internal_Templateparser->doParse(4, '\\')
#3 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php(481): Smarty_Internal_SmartyTemplateCompiler->doCompile('<!DOCTYPE html ...', true)
#4 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatecompilerbase.php(404): Smarty_Internal_TemplateCompilerBase->compileTemplateSource(Object(Smarty_Internal_Template), false, NULL)
#5 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_resource_recompiled.php(52): Smarty_Internal_TemplateCompilerBase->compileTemplate(Object(Smarty_Internal_Template))
#6 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(136): Smarty_Resource_Recompiled->process(Object(Smarty_Internal_Template))
#7 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(105): Smarty_Template_Compiled->process(Object(Smarty_Internal_Template))
#8 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(216): Smarty_Template_Compiled->render(Object(Smarty_Internal_Template))
#9 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(232): Smarty_Internal_Template->render(false, 0)
#10 /var/www/html/devwhmcs/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(116): Smarty_Internal_TemplateBase->_execute(Object(Smarty_Internal_Template), NULL, NULL, NULL, 0)
#11 /var/www/html/devwhmcs/modules/addons/invoice4u/class_invoice4u.php(821): Smarty_Internal_TemplateBase->fetch('eval:<!DOCTYPE ...')
#12 /var/www/html/devwhmcs/modules/addons/invoice4u/class_invoice4u.php(515): invoice4u->sendDocuments(10, 'Invoice4u Invoi...', Array)
#13 /var/www/html/devwhmcs/modules/addons/invoice4u/class_invoice4u.php(106): invoice4u->generateDocument(Array, 'InvoiceReceipt', Array)
#14 /var/www/html/devwhmcs/modules/addons/invoice4u/invoice4u.php(1866): invoice4u->cronDocuments(Array)
#15 /var/www/html/devwhmcs/admin/addonmodules.php(0): invoice4u_output(Array)
#16 {main}