Can't check out

I was able to add items to my cart but I can't check out. I keep getting this message. We're sorry, the link that you clicked on could not be served. We are experiencing a temporary delay due to high volume. Please click RELOAD and try again. We apologize for the inconvenience. I'm trying to do my back to school shopping now to take advantage of No Tax Weekend. The site is not cooperating! I guess I have to spend my money at Target.