Autoload error

Module 'Mageplaza_Core' from '/mnt/data/home/368319.cloudwaysapps.com/uemuwmnths/public_html/app/code/Mageplaza/Core' has been already defined in '/mnt/data/home/368319.cloudwaysapps.com/uemuwmnths/public_html/vendor/mageplaza/module-core'.