There is an easy fix if there are issues with your Google Chat account. Initially, confirm that Google Hangouts is installed on your computer with the most recent version. After that, launch the Hangouts app and log in. In the upper-left corner of the window, click the three lines and choose "Restore chat settings."
Select the chats you want to restore from this menu, then click Restore. After this is finished, examine your messages to see if they are still relevant. If not, do inform us by using our contact page or by opening a support request!
The best way to fix Gmail Chat is not Working is by contact Gmail Chat Support Help at +1-888-625-2848 in PST business hours!