(DomainException): Default website is not defined

Hi,
Migrating from magento 1.9.x to Magento 2.1.3 using UB Data Migration Pro — 3.0.4 using ssh command.
Migration shows 100% completed. This migration was done on a clean Magento 2.1.3 as I wanted to migrate data first before theme customisation.
Now I am getting an error below after migration. Flushed cache, clean and also reindexing wont work.Are you able to guide us.
Are you able to guide us what the reason could be.
Log details are below.
Best regards,
Suraj
1 exception(s):
Exception #0 (DomainException): Default website is not defined
Exception #0 (DomainException): Default website is not defined
#0 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-store/Model/StoreResolver/Website.php(46): Magento\Store\Model\WebsiteRepository->getDefault()
#1 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-store/Model/StoreResolver.php(136): Magento\Store\Model\StoreResolver\Website->getAllowedStoreIds(NULL)
#2 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-store/Model/StoreResolver.php(122): Magento\Store\Model\StoreResolver->readStoresData()
#3 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-store/Model/StoreResolver.php(85): Magento\Store\Model\StoreResolver->getStoresData()
#4 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-store/Model/StoreManager.php(154): Magento\Store\Model\StoreResolver->getCurrentStoreId()
#5 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/var/generation/Magento/Store/Model/StoreManagerInterface/Proxy.php(119): Magento\Store\Model\StoreManager->getStore(NULL)
#6 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-store/Model/Resolver/Store.php(29): Magento\Store\Model\StoreManagerInterface\Proxy->getStore(NULL)
#7 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/framework/App/Config/ScopeCodeResolver.php(49): Magento\Store\Model\Resolver\Store->getScope(NULL)
#8 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/framework/App/Config.php(79): Magento\Framework\App\Config\ScopeCodeResolver->resolve(‘stores’, NULL)
#9 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-backend/App/Area/FrontNameResolver.php(96): Magento\Framework\App\Config->getValue(‘admin/url/use_c…’, ‘stores’)
#10 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/module-backend/App/Area/FrontNameResolver.php(79): Magento\Backend\App\Area\FrontNameResolver->isHostBackend()
#11 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/framework/App/AreaList.php(73): Magento\Backend\App\Area\FrontNameResolver->getFrontName(true)
#12 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/framework/App/Http.php(130): Magento\Framework\App\AreaList->getCodeByFrontName(‘controlpanel’)
#13 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/vendor/magento/framework/App/Bootstrap.php(258): Magento\Framework\App\Http->launch()
#14 /var/www/vhosts/xxx.com.au/httpdocs/crystals-newage-shop/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http))
#15 {main}