The following is courtesy of Konami Digital Entertainment:
"We are excited to announce that non-PlayStation®Plus members are now able to play online matches in PES 2019 LITE (free-to-play edition). This change was implemented during maintenance on 30/05/2019.
Jump online now and enjoy the thrill of competing against other users! *Only PlayStation®Plus members can play online matches in the full-version of PES 2019. We thank you for your continued support of PES 2019."
To download PES 2019 LITE click here.