PTS has been a confusing term for a lot of PlayStation players since the launch.
PTS stands for Public Test Server and it is a server created by us to test and try out new features, such as new weapons, weather and so on before it goes live onto the Live server.
The PTS is provided absolutely free for all players who own PUBG on PS4.
Please ensure you're launching the main PUBG game and not the option marked with "PTS".
The Public Test Server will be used in the future to allow players to test upcoming content releases.