To install the extension manually

1. Log in the ftp, and then go to Magento 2  root folder (generally present under the public_html folder).
2. Create a new folder named code under the app folder; under code folder, create a folder named Ced.
   1. Upload or Drag and Drop app/code/Ced/Bonanza directory.
   2. After successfully uploading the directory, the extension will be installed/upgraded.
   3. Now run the  following command in cmd 
      

      php bin/magento setup:upgrade
      php bin/magento setup:di:compile
      php bin/magento setup:static-content:deploy -f
      php bin/magento index:reindex
      php bin/magento cache:clean
      php bin/magento cache:clean
      

   4. Once the extension is installed it appears in the main menu of the Magento panel just like this –