Hi, my customers are not able to place orders they can fill out all the details during onepage checkout but once they hit "place order" nothing happens. This problem just occured a few hours ago and was working perfectly fine before. I see that others had an issue with mbstring but this cannot be for my case since place order has always been working.
Can someone pelase advise what I can try?
The website is over at www.scitecdirect.co.uk
It was an issue caused with disabling a third party extension. After enabling it again the button is now working.