nach Cache löschen Fehlermeldung

habe einfach nur den Cache gelöscht danach kam folgende Fehlermeldung. Ups! Ein Fehler ist aufgetreten! Die nachfolgenden Hinweise sollten Ihnen weiterhelfen. Unknown number format type ‘boolean’. Format ‘’ must be a valid number format string. in Vendor/Zend/library/Zend/Locale/Format.php on line 102 Stack trace: #0 Vendor/Zend/library/Zend/Locale/Format.php(305): Zend_Locale_Format::_checkOptions(Array) #1 Vendor/Zend/library/Zend/Currency.php(186): Zend_Locale_Format::toNumber(0, Array) #2 Enlight/Template/Plugins/modifier.currency.php(41): Zend_Currency->toCurrency(0, Array) #3 cache/templates/templates_tutorial_de_DE_1^604ff776e98aebfaf69dd2ecc1dec78f881f7f26.extends.index.tpl.php(873): smarty_modifier_currency(0) #4 Vendor/Smarty/libs/sysplugins/smarty_internal_template.php(436): include(’/homepages/27/d…’) #5 Enlight/Template/Template.php(46): Smarty_Internal_Template->renderTemplate() #6 Vendor/Smarty/libs/sysplugins/smarty_internal_template.php(568): Enlight_Template_Template->renderTemplate() #7 Vendor/Smarty/libs/Smarty.class.php(328): Smarty_Internal_Template->getRenderedTemplate() #8 Vendor/Smarty/libs/sysplugins/smarty_internal_template.php(865): Smarty->fetch(Object(Enlight_Template_Template)) #9 Enlight/View/ViewDefault.php(153): Smarty_Internal_Template->fetch() #10 Enlight/Controller/Plugins/ViewRenderer/Bootstrap.php(87): Enlight_View_ViewDefault->render(Object(Enlight_Template_Template)) #11 Enlight/Controller/Plugins/ViewRenderer/Bootstrap.php(102): Enlight_Controller_Plugins_ViewRenderer_Bootstrap->renderTemplate(Object(Enlight_Template_Template)) #12 Enlight/Controller/Plugins/ViewRenderer/Bootstrap.php(43): Enlight_Controller_Plugins_ViewRenderer_Bootstrap->render() #13 Enlight/Event/EventHandler.php(60): Enlight_Controller_Plugins_ViewRenderer_Bootstrap->onPostDispatch(Object(Enlight_Event_EventArgs)) #14 Enlight/Event/EventManager.php(70): Enlight_Event_EventHandler->execute(Array, Object(Enlight_Event_EventArgs)) #15 Enlight/Controller/Action.php(76): Enlight_Event_EventManager->notify(Object(Enlight_Event_EventArgs)) #16 Enlight/Controller/Dispatcher/DispatcherDefault.php(329): Enlight_Controller_Action->dispatch(‘Enlight_Control…’, Array) #17 Enlight/Controller/Front.php(99): Enlight_Controller_Dispatcher_DispatcherDefault->dispatch(‘indexAction’) #18 Shopware/Bootstrap.php(33): Enlight_Controller_Front->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp)) #19 Enlight/Application.php(86): Shopware_Bootstrap->run() #20 shopware.php(6): Enlight_Application->run() #21 {main}