I am having problems with my e-commerce [woo commerce] kicking people out when they 'proceed to

I know i did not get woo commerce from you, but I am having problems with woo commerce. When people try to fill out an order and click 'proceed to paypal' on old IE browsers, it clears the fields and makes them start all over. WPEngine [host], Rapid SSL [certificate] and Paypal [checkout] have all looked at it and find not problem.

I just noticed a message from woo commerce that says 'there may be problems with woo commerce and studio press [my theme]'.

Do you know anything about this? Do you know any work arounds?