I have the same problem on my android 

cant login on my pc... (could not log in) 

I am having the same situation here. Can't login on my desktop, neither on my android.

fixed

Im experiencing this issue since yesterday until today.tried installing/uninstalling.go to regedit delete folder plarium.then restart.download new plariumsetup still the problem exsist.i can play on my phone.but playing on pc is better