update v3.4.2 – cannot log in anymore

hi,

i updated my wordpress version yesterday, when i want to log in to my dashboard now, i get the following error:

Warning: include(includes/sociable_output.php) [function.include]: failed to open stream: No such file or directory in /home/cb167/public_html/hiphopvidz.com/wp-content/plugins/sociable/sociable.php on line 44

Warning: include(includes/sociable_output.php) [function.include]: failed to open stream: No such file or directory in /home/cb167/public_html/hiphopvidz.com/wp-content/plugins/sociable/sociable.php on line 44

Warning: include() [function.include]: Failed opening ‘includes/sociable_output.php’ for inclusion (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/cb167/public_html/hiphopvidz.com/wp-content/plugins/sociable/sociable.php on line 44

Warning: Cannot modify header information – headers already sent by (output started at /home/cb167/public_html/hiphopvidz.com/wp-content/plugins/sociable/sociable.php:44) in /home/cb167/public_html/hiphopvidz.com/wp-includes/pluggable.php on line 881

how can i solve this?