Fix WP Robot Autoposter on wordpress blog.

Need someone very familiar with WP Robot Autoposting software for wordpress blog. It is not automatically posting content for my site. This seems to be a Cron issue with the research I have done. I have site on dedicated server, have tried all the fixes I have been able to find on the internet. The software will manually post, but will not automatically post. Have also tried disabling other plugins to no available. If you know what I am talking about, and can fix it, please help.