Hi @voineagheran,
This error (Installation failed: Destination folder already exists.) can occur if you already have the plugin installed, or if you have renamed the wp-content folder of the plugin. In rare cases, something may go wrong during the installation process, which causes the folder to be created, but its files are missing or corrupt.
Solution
If you are running WordPress 5.5 or higher, you should see the option to automatically overwrite the existing installation with the uploaded ZIP file. Choose to overwrite the current version with the uploaded version. If you are running an older WordPress version, you can either upgrade to the latest WordPress version or manually delete the plugin directory first and then upload it again through your WordPress dashboard.
For more detail, check this guide: https://www.wpbeginner.com/wp-tutorials/how-to-fix-destination-folder-already-exists-error-in-wordpress/
>Installation failed: The package could not be installed. PCLZIP_ERR_MISSING_FILE (-4)
Are you perhaps out of disk space in the partition holding either WP or your /tmp directory? If you face this error again, you need to discuss it with your host, and they will fix it for you.
