WordPress Error and Now Nothing is Working!

Please help. After I tried to install the feedburner plugin I got this message and now I cannot access anything!

Warning: main(/home/bvanderlinden/mommywords.com/wp-content/plugins/__MACOSX/) [function.main]: failed to open stream: Success in /home/bvanderlinden/mommywords.com/wp-settings.php on line 473

Warning: main() [function.include]: Failed opening ‘/home/bvanderlinden/mommywords.com/wp-content/plugins/__MACOSX/’ for inclusion (include_path=’.:/usr/local/lib/php’) in /home/bvanderlinden/mommywords.com/wp-settings.php on line 473

Warning: Cannot modify header information – headers already sent by (output started at /home/bvanderlinden/mommywords.com/wp-settings.php:473) in /home/bvanderlinden/mommywords.com/wp-includes/pluggable.php on line 850