Problems with online store checkout

[UGJac]

My number of online sales orders has drastically reduced over the last few days. Several of my customers are getting error screen when they try to checkout. I believe they are all iPhone users. Has anyone else had these issues?

[peaceofsoulsc]

Yes, I've had the same issue. The site loads slowly if at all and then won't allow customers to check out. I've called customer support and they can't find an issue. Please let me know if you find a solution.