apweslk

You are getting a 500 error in your browser and this is logged? Notices should not create a 500 error and are usually not a big deal, so it may be unrelated. At what step during the order form do you get a 500 error? Is there anything else in the other log files at this time? Have you tried enabling error reporting in /config/blesta.php (change from "0" to "-1")  to see if anything is output to the browser?

That's the same message that was in the log, but you said you got a 500 error? A 500 error won't return anything to the browser, do you get that at a different step? Can you describe the steps you take to get the error? What doesn't work exactly? It's possible for notices like "Undefined property" to exist and everything to work normally. If it's not working correctly, we need to know what isn't working and the steps you took to get there.