For context, I use earthlink as my web hosting provider and have installed wordpress through a built in admin interface via earthlink. The file directory only provides visibility to wp-content but no others.
My main issue relates to trying to provide domain credentials for new plugins. I get a Failed connection to the FTP Server (the 'DomainName:21' error). For whatever reason the number '21' is being added to the end of the domain name. I did some research and this problem has happened to others. Any suggestions? I did read one fix suggestion which is to install the Core Control plugin so that I can disable the Transport of "PHP FTP Extension".
I've manually copied over the core control plug-in and have created the WordPress/wordpress-content/plugins/core-control and WordPress/wordpress-content/plugins/core-control/modules directories. I've activated the core-control plug-in but when I go to tools to access the Core Control I get an error message that says ' Undefined variable: msg in /services/websiteos/wordpress/wp-admin/includes/update.php on line 137'. The result is that none of the modules are appearing on the Core Control page. I'm not a developer so struggling with this. Any suggestions?