In a tweet by PUBG it is noted once again, that the servers may be unstable at the moment due to the season reset and server update that they underwent the past week. This can be a problem, but if you bear with PUBG for a while this will slowly be fixed as the servers will be made more stable.
Please note that servers may be unstable and match statistics may not be functional during this time. https://t.co/QQnix7Tp50
— PLAY BATTLEGROUNDS (@PUBATTLEGROUNDS) October 19, 2017
Another thing they noted was the match statistics, they referred to this not working properly for some time due to the season change, but it seems this is still not functional and will need more time to be properly fixed, as to what is wrong I am not sure myself, but I can make an adequate guess that it has something to do with their servers.
Hopefully, PUBG will be fixed and more stable in the next week or so, I personally want to get some game time done before PC 1.0 release, despite being excited about the vault and climbing, and of course the new vehicle control.