To install the extension,

• Upload and Extract the eBay Affiliate package and Integrator file inside the <magento-root>/app/code/Ced/ directory and run the below command from Magento root-
  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:flush