Photon Cloud Integration

Hi, Guys, I am using photon and Playfab to make a multiplayer.
I am trying to Integrate Photon Into my project using the Photon Cloud Plugin. But I am getting some errors when I run it First one is an invalid Username
LogPhotonCloud: ERROR: 2023-12-18 15:37:32,599 ERROR Client.cpp ExitGames::LoadBalancing::Client::onOperationResponse() 1551 OperationResponse - operationCode: 231, returnCode: 32755 (Invalid username)
LogPhotonCloud: ERROR: 2023-12-18 15:37:32,600 ERROR Client.cpp ExitGames::LoadBalancing::Client::onOperationResponse() 1565 OperationResponse - operationCode: 231, returnCode: 32755 (Invalid username) {}
LogPhotonCloud: ERROR: 2023-12-18 15:37:32,600 ERROR Client.cpp ExitGames::LoadBalancing::Client::onOperationResponse() 1568 authentication failed with errorcode 32755: Invalid username

But When I add the playfab Id in the user name the error changes and becomes an Invalid token I have setup playfab and photon both and have added all the token and valid user name but still getting these errors. Can anyone guide me in the right direction