I am new and just setting everything up.  I am trying to run a test transaction.  I enter all of the information including my credit card.  As soon as I hit confirm order, I get this error message:  Unknown error encountered. Please try again!

I went to my dashboard and there were no error messages.  This is all very new to me so I am not sure what to do next?

I have fast checkout enabled.  I am using Authorize.net.  I have AbanteCart Version 1.3.3

Hello, I am a new user.  I want to set up free shipping after 50.00.  I have the free shipping extension turned on.  I have the total set to 50.00.  I have the auto select turned off.  I have the flat rate shipping extension turned on.  I have all locations enabled for a flat rate.  I have the auto select turned off.  The issue is that it doesn't charge shipping on orders under 50.  What other setting do I need to change for this to work correctly?