Hey its there a way to purge inactive players data?

Define inactive players.

Also why exactly are you concerned with that?
The database will take up a few MBs max

Like... A player who does not connect to the server for more than 90 days(exemple) ... There is an automatic way to "clear" on the user?

No. As LP does not track the last login of a player.

Thanks ♥ ^-^

Oh ok.

If you have a plugin tracking that, you can potentially use the LP API to clear the data.

But again. There's no real point in doing that.