ThE Appointment+ Update broke my site!

Hi,

I have just updated Appointments+ and this error message is displayed THROUGHOUT the site:

Parse error: syntax error, unexpected '<<' (T_SL), expecting function (T_FUNCTION) in /var/sites/t/twilex.co.uk/public_html/wp-content/plugins/appointments/includes/addons/app-mp-product_cart_appointments.php on line 32

WHAT DO I DO?