Upload file themes

We tried to upload a file to the /wp-content/themes/ directory and it seems to have failed.

How can I fix this?

Please check if your SSH/SFTP/FTP user has permissions to upload files to the /wp-content/themes/ directory.

The /wp-content/themes/ directory permissions should be set to 755. If you’re unsure about how to do this, please contact your host, or see Changing File Permissions.