I installed paid template ethan on Magento 2.1.1 and imported a ready full demo database.
Unfortunately, when I imported full demo the database, the page stopped displaying correctly. also administrative panel is working correctly
Only the main banner is displayed. in the attachment a screenshot of the entire page.
Here is error code:
Fatal error: Uncaught Error: Call to a member function unserialize() on null in F:\XAMPP\htdocs\magento\vendor\magento\module-swatches\Helper\Data.php:174 Stack trace: #0 F:\XAMPP\htdocs\magento\vendor\magento\module-swatches\Helper\Data.php(530): Magento\Swatches\Helper\Data->populateAdditionalDataEavAttribute(Object(Magento\Catalog\Model\ResourceModel\Eav\Attribute\Interceptor)) #1 F:\XAMPP\htdocs\magento\vendor\magento\module-swatches\Model\Plugin\Configurable.php(62): Magento\Swatches\Helper\Data->isVisualSwatch(Object(Magento\Catalog\Model\ResourceModel\Eav\Attribute\Interceptor)) #2 F:\XAMPP\htdocs\magento\vendor\magento\framework\Interception\Interceptor.php(152): Magento\Swatches\Model\Plugin\Configurable->afterGetUsedProductCollection(Object(Magento\ConfigurableProduct\Model\Product\Type\Configurable\Interceptor), Object(Magento\ConfigurableProduct\Model\ResourceModel\Product\Type\Configurable\Product\Collection\Interceptor)) #3 F:\XAMPP\htdocs\magento\var\generation\Magento\ConfigurableProduct\Model\Product\Type in F:\XAMPP\htdocs\magento\vendor\magento\module-swatches\Helper\Data.php on line 174
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