TECHNICAL ERROR: unable to save account Details: Error thrown: [object Object] Text status: error
unfortunately we getting this error when trying to save account details on checkout.
presta 1.6.0.14
php 5.5
https://www.silver-msm.com/gb/
quick order checkout
Uncaught SyntaxError: Unexpected end of input
v_47_9362ed976300b6324681e2ff6a25b4a4.js:4 Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
v_47_9362ed976300b6324681e2ff6a25b4a4.js:4 POST https://www.silver-msm.com/gb/authentication?rand=1456149035954 500 (Internal Server Error)
any help or ideas on what to check would be very much appreciated.