MarketPress causing PHP error in admin dashboard

Hi,

Recently after installing MarketPress I have been unable to access the admin dashboard due to the plugin generating a PHP error. I get the following error:

Fatal error: 'continue' not in the 'loop' or 'switch' context in /home/dumbgrap/public_html/wp-content/plugins/marketpress/includes/common/payment-gateways/payfast.php on line 180

The front end of the site is accessible still.

Any ideas as to how I can solve this?

Thanks,
Sam.