Can't add a price to product

-- url of the page with the problem -- : shop.miakascreations.com/index.php/shop/...ini-skeeball-machine
-- HikaShop version -- : 3.3.0
-- Joomla version -- : 3.8
-- PHP version -- : 7.0.27
-- Browser(s) name and version -- : Chrome 64.0.3282.140
-- Error-message(debug-mod must be tuned on) -- : **An error has occurred.**
0 DateTime::__construct(): Failed to parse time string (null) at position 0 (n): The timezone could not be found in the database
/home/miakascr/shop.miakascreations.com/libraries/src/Date/Date.php:112
Call stack
# Function Location
1 () JROOT/libraries/src/Date/Date.php:112
2 DateTime->__construct() JROOT/libraries/src/Date/Date.php:112
3 Joomla\CMS\Date\Date->__construct() JROOT/libraries/src/Factory.php:548
4 Joomla\CMS\Factory::getDate() JROOT/administrator/components/com_hikashop/helpers/helper.php:249
5 hikashop_getTime() JROOT/administrator/components/com_hikashop/classes/product.php:543
6 hikashopProductClass->backSaveForm() JROOT/administrator/components/com_hikashop/classes/product.php:50
7 hikashopProductClass->saveForm() JROOT/administrator/components/com_hikashop/helpers/helper.php:1622
8 hikashopController->store() JROOT/administrator/components/com_hikashop/helpers/helper.php:1562
9 hikashopController->apply() JROOT/libraries/src/MVC/Controller/BaseController.php:710
10 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_hikashop/helpers/helper.php:1754
11 hikashopController->execute() JROOT/administrator/components/com_hikashop/hikashop.php:71
12 require_once() JROOT/libraries/src/Component/ComponentHelper.php:382
13 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:357
14 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:101
15 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:159
16 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:303
17 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/index.php:51

After updating to the latest version of Hikashop, I am unable to add any prices to any new product without getting a time zone error. "nul" I have the time zone set in Joomla. I'm not sure where else to look.

Thank you. It now works.