I am using an Authorize.net test account and all of my test transactions were working fine. It seems around the time I change the configure files to use https and made permissions changes to some of those config files, so I could overwrite them, it stopped working.
I am getting the error:
0 - There has been an error processing your credit card. Please try again.
Does anyone have an idea what in those changes or others could've caused this? All the module settings and data are the same as before.
I can't find any clear info on this. Thanks.



