Autoload error

Module 'Mageplaza_Smtp' from '/home/1262988.cloudwaysapps.com/eydkqkpjcw/public_html/app/code/Mageplaza/Smtp' has been already defined in '/home/1262988.cloudwaysapps.com/eydkqkpjcw/public_html/vendor/mageplaza/module-smtp'.