[talk] Bubble login... doesn't work...

I kept getting errors so I deleted and reinstalled it, but I can't log in ㅠㅠ Even though I entered the password and email correctly... I can log in on my iPad... But it doesn't work on my other phones... I really want to cry. If any of you know a solution or reason, please help me. I want to see the kids' bubbles ㅠㅠㅠ