Mfu throttle help needed

[dmess62]

Having issue with the throttle being reversed. When I push the left stick up th truck goes in reverse when pull stick down truck goes forward but back up beeper sounds. If I go int to settings and reverse throttle then the truck goes forward when I pull stick down also the throttle cut is opposite when I push it the truck accelerates. I'm using dx6i. I ve searched and haven't come up with answer yet, anybody have any suggestions