Activating a plugin when wp-content is renamed

I moved (renamed by wp-content) using these instructions which I inserted in the wp-config file.

After the move I was not able to activate some plugins such as this one: Ultimate Branding.

This was the error message.
Warning: require_once(ultimate-branding-files/includes/config.php): failed to open stream: No such file or directory in /web/sites/mysite/ on line 15 Fatal error: require_once(): Failed opening required 'ultimate-branding-files/includes/config.php' (include_path='.:disappointed:usr/share/php:disappointed:usr/share/pear') in /web/sites/mysite/ on line 15

Is there an easy fix for this?