[SOLVED] Need Help With AutoRank & Stats

I am currently using stats3 and autorank. To rank up, the players are required to play for a set amount of time and kill a certain amount of mobs. For some reason, whenever a player leaves the server and comes back, their mob kills are reset. I've looked all through the configs and can't figure out what the issue is. Anyone else have this issue? Only the mob kills are resetting, not the time. I've tried to pm the devs of the plugins but I haven't gotten any replies and this is kind of urgent. Thanks.

SOLVED: It was an issue with MySQL not creating tables. I installed the latest dev version of stats and it created new tables and started working fine.