My 2015 sportsman 400 sounded like something was rattling. I stoped the quad and slowly went forward, the sound got worse. I put it in reverse and it started sounded like it was grinding. so I turned off the bike and got the trailer. when I went to put the bike on the trailer, I turned it on and put it into high. It did not roll forwards. I tried to switch it back to neutral and now the gears stick is stuck. it will not move out of high and will not move. or roll. What would be the issue?