A Problem – FireChat Review

I can’t register and log in! When it comes to the email address and submitting it , the app shows an error (M_UNKOWN). I can’t even reset my password - it shows another error that says my email address can not be found!! In our country we need this app , because our government disconnects us from world wild web for suppressing our protests. Please help!
Review by mmdmlk on FireChat.