Hi my name is ***** ***** I will be the expert working with you today to help resolve your problem.
If your gmail account is working fine on the pc then you will have to change the password ***** then try the google play on the device you are getting the error. Try restarting the device before running google play.
reset google account on your phone and re configure it back for that you will have to factory reset your phone.
Before reset back up your apps and other data.
your gmail account is good however the googleplay app on your phone may be corrupted due to which you are getting the error.
What is the make and model number of the phone.
Do you want to follow the reset steps?
Have you backed up apps and other data like sms, photos etc.
do you have a backup of your phone
you can download super backup from the apps download and backup whatsapp and other contacts.
i will give you the factory reset steps now you can follow the steps after you backup your phone.
ok then you may follow the reset steps
Follow the steps below:
* Please backup your data before Factory Reset using Kies on your computer. App data is not backed up automatically.
1. From the Home screen touch Apps.2. Touch Settings.3. Touch the Accounts tab.
4. Touch Back up and reset5. Touch Factory data reset6. Touch Reset phone.7. Touch Erase everything.
you can open justanswer email and reply the chat will reconnect.