Sorry to have to say this, but the server is possibly going to be shutting down. I've looked literally everywhere on the internet for a script or an addon or SOMETHING that saves player data between server restarts, but it simply doesn't exist for a rented game server. I even paid for a MySQL server thinking there would be a way to do it like that, but the only addons that exist were not programmed with rented game servers in mind for whatever reason. The only solution I can think of that might work is hosting a DayZ server and hoping that the player saving there works, but that I highly doubt and I've already payed for a Combined Operations server from Vilayer, not a DayZ server. Sorry to have let you all down.