Joom Donation was working fine for me where I was able to process a couple transactions. Then my "next" button stopped working. I read other posts and selected "yes" for the "Fix donate button not working " option in General Configuration, but it is not correcting the issue. What else could I be overlooking?
There might be some javascript conflict causing this issue. Could you please submit a support ticket sending me administrator and FTP account of your site so that I can check and solve it for you ?