I would like an explanation why I cannot gain access – Random Video Chat & Meet me Review

I had this app for several days and was actually pretty happy with it overall, then on day 3 I suddenly get a message say I cannot log in on this device, no matter what I tried it was a no go. I see From another review I am not the only one to suddenly get this message and I would really like to know why it started coming up and what, if anything, can be done about it. Use the app at your own discretion!!
Review by Explanation requested on Random Video Chat & Meet me.