The post publishing happens on the front end from an external plugin : user submitted posts ; which uses the wp posts format. And it works sometimes , it gifts the user the allotted points one time and it doesn’t the other time.
And I am sorry , I didn’t referred to the WP Database plugin , I referred to the message Gamipress puts on the dashboard on installation that I need to optimize my WordPress database or something like that. I am talking about that.
And yes , I use W3 Total Cache. But the errors are random , for the same point types from a user action ; sometimes the engine works , sometimes doesn’t.