Unity IAP not calling callbacks after Application.Quit()

I'm using Unity 2019.1.8, When i open the game for the first time, or kill it manually after exiting, the Unity IAP works normally.If i exit using Application.Quit and then open again there is this message in logcat **"Scripting proxy object was destroyed, because Unity player was unloaded."** and unity iap does not call the **OnInitialized**.I've seen the threads about this problem but it was supposed to be fixed in Unity 2018+.