Default XDA Android App Login Issue

HI

I have downloaded Xda android app. started using it. I have encountered an issue, where i am not able to login to xda using google plus. I registered in this site using Google plus Handler, hence is no separate password for this site.The google plus login handler is missing from Android app, thats why not able to login through to xda.

I hope my problem with app is genuine. Expecting replies.