If you abbreviate a sub-option on your command line, make sure that you are supplying enough characters in the sub-option to delineate it from similarly spelled sub-options. (E3) Ambiguous sub-option specified - XXX.
If, for example, you only specify -pr on your command line, Smartcrypt will generate the (E2) error because it cannot determine whether you are specifying the print or preview option. If you abbreviate an option on your command line, make sure that you are supplying enough characters in the option to delineate it from similarly spelled options. (E2) Ambiguous option or command specified - XXX.