Installation failed: Destination folder already exists.

– Falha na instalação: A pasta de destino já existe.
– Die Installation ging schief: Der Zielordner existiert bereits.
– Instalación fallida: La carpeta ya existe.

Solution 1:

Go to WP Admin > Plugins and see if you have this plugin on the list. Deactivate and delete it. If it doesn't help, try the next solution.

Solution 2:

Open your website directory in the FTP editor or use the "File Manager" from your Cpanel. Navigate to /wp-content/plugins/. Find the folder with the problematic plugin and delete it.