I hope you are well today and thank you for your question.
It seems you have already installed those plugins so please delete them before reinstalling them.
If you don’t see them installed on the Plugins page then please remove the below plugins directory from your web server by accessing it using FTP or cPanel file manager.
/customers/e/f/b/danielbuiles.co/httpd.www/projects/personal-trainer/wp-content/plugins/mailchimp-for-wp/ /customers/e/f/b/danielbuiles.co/httpd.www/projects/personal-trainer/wp-content/plugins/envato-market/ Best regards, Shufflehound team