When I click on Compose in my gmail acct. I get the error #000. Then nothing works. Gmail info sent me to you.

When I am in my gmail acct. and click on "Compose" the box comes up and I can type in it, but an error message #000 appears at the top. It says it will retry in "so many minutes" and never does. It just adds time. The retry button only adds to the time in the "so many minutes." You can type in the compose box but it will never send and then nothing else will work. I click on the inbox and it will not response and the same with the other buttons. My husband has an account, too and it doesn't do this. I can click compose, type, and send in his gmail acct. HELP! I am applying for jobs and this is the email I have given prospective employers.