Ive just recently bought dms and it worked fine until later it when my site had a serious error that i later realized was brought by brought by jomsocial. I reinstalled dms back into the system and everything seemed to work fine until i tried purchasing a document the got an error message "Page not found" I keep getting this message everytime I click "process order". What might be the matter?
It must be something on your site causing the issue. Please submit a support ticket sending me administrator and FTP account of your site so that I can check and fix it for you.