1. You must provide at least one recipient email address.
   

   Call stack
   #	Function	Location
   1	JError::raise()	JROOT/libraries/legacy/error/error.php:321
   2	JError::raiseNotice()	JROOT/libraries/src/Mail/Mail.php:162
   3	Joomla\CMS\Mail\Mail->Send()	JROOT/plugins/system/zoombie/zoombie.php:500
   4	plgSystemZoombie->sendNotice()	JROOT/plugins/system/zoombie/zoombie.php:263
   5	plgSystemZoombie->doSatanJobs()	JROOT/plugins/system/zoombie/zoombie.php:97
   6	plgSystemZoombie->onAfterDispatch()	JROOT/libraries/joomla/event/event.php:70
   7	JEvent->update()	JROOT/libraries/joomla/event/dispatcher.php:160
   8	JEventDispatcher->trigger()	JROOT/libraries/src/Application/BaseApplication.php:108
   9	Joomla\CMS\Application\BaseApplication->triggerEvent()	JROOT/libraries/src/Application/SiteApplication.php:199
   10	Joomla\CMS\Application\SiteApplication->dispatch()	JROOT/libraries/src/Application/SiteApplication.php:233
   11	Joomla\CMS\Application\SiteApplication->doExecute()	JROOT/libraries/src/Application/CMSApplication.php:225
   12	Joomla\CMS\Application\CMSApplication->execute()	JROOT/index.php:49

{
    "__default": {
        "session": {
            "counter": 1,
            "timer": {
                "start": 1638797948,
                "last": 1638797948,
                "now": 1638797948
            },
            "token": "qT1zHONfmjnLd7ALbnv9QdzEQl5rv1IP"
        },
        "registry": {
            "proopc": {
                "lastvisited": {
                    "url": "http://virtuemartshop.eu/"
                }
            }
        },
        "user": {
            "id": 0,
            "name": null,
            "username": null,
            "email": null,
            "password": null,
            "password_clear": "",
            "block": null,
            "sendEmail": 0,
            "registerDate": null,
            "lastvisitDate": null,
            "activation": null,
            "params": null,
            "groups": [],
            "guest": 1,
            "lastResetTime": null,
            "resetCount": null,
            "requireReset": null,
            "aid": 0
        }
    },
    "__com_awocoupon": {
        "site": {
            "virtuemart_use_injection_mode": 0,
            "coupon_auto": 0
        }
    },
    "__vm": {
        "vmcartlastVendorId": 1,
        "vmcart": "{\"cartProductsData\":[],\"vendorId\":1,\"lastVisitedCategoryId\":0,\"virtuemart_shipmentmethod_id\":0,\"virtuemart_paymentmethod_id\":0,\"automaticSelectedShipment\":false,\"automaticSelectedPayment\":false,\"order_number\":null,\"BT\":{\"delimiter_billto\":\"Address Nickname\",\"virtuemart_country_id\":175},\"ST\":{\"address_type_name\":\"Address Nickname\",\"virtuemart_country_id\":175},\"cartfields\":[],\"couponCode\":\"\",\"_triesValidateCoupon\":[],\"order_language\":\"en-GB\",\"pricesCurrency\":\"9\",\"paymentCurrency\":null,\"_guest\":1,\"_inCheckOut\":false,\"_inConfirm\":false,\"_redirected\":false,\"_dataValidated\":false,\"_confirmDone\":false,\"STsameAsBT\":1,\"selected_shipto\":0,\"_fromCart\":false,\"layout\":\"default\",\"layoutPath\":\"\",\"virtuemart_cart_id\":0,\"orderdoneHtml\":false,\"virtuemart_order_id\":false,\"byDefaultBT\":{\"delimiter_billto\":1,\"virtuemart_country_id\":1},\"byDefaultST\":{\"address_type_name\":1,\"virtuemart_country_id\":1},\"cartLoaded\":[]}"
    }
}