I'm getting an error in my debug logs as follows. The admin will load the but the storefront will not. At first I thought it might be due to the recent update, but after updating from 3.6 to 3.6a I am still getting the second error below, and now the first has appeared.

Any ideas? MUCH appreciated.

Code:
PHP Fatal error:  Cannot redeclare recaptcha_get_html() (previously declared in /home/REMOVED/URL-REMOVED/includes/functions/extra_functions/functions_google_recaptcha.php:46) in /home/REMOVED/URL-REMOVED/includes/functions/extra_functions/recaptchalib.php on line 23

PHP Fatal error:  Cannot declare class zcObserverGoogleRecaptchaObserver, because the name is already in use in /home/REMOVED/URL-REMOVED/includes/classes/observers/auto.google_recaptcha_observer.php on line 0