Class \Helper\(Abstract)Data not found

Modified on Wed, 7 Feb, 2018 at 5:15 PM

The reason is you haven't installed Core module. Please follow this link to finish the installation process: https://www.mageplaza.com/install-magento-2-extension/

You can read more about this error here: https://mageplaza.freshdesk.com/support/solutions/articles/6000107679-500-error-cannot-access-backend-frontend-

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