cannot log in to site

[pznproductions 0]

How do I fix this? Fatal error: Call to undefined function stc_get_credentials() in /home/pzn/public_html/realityblueprint.com/wp-content/plugins/simple-twitter-connect/stc-login.php on line 131

[Kate 3]

Do you have access to your site files, through your host, for instance? Go into "wp-content/plugins" and delete (or rename) the "simple-twitter-connect" folder. (Personally I would just delete it and then re-install it.) You should be able to login then.