Google one of the highly known and best in class mailing service but also very restrictive on its security. Many times if Google notice the user is not following terms and conditions it temporarily disable the account . thankfully there are different ways to recover the account.

HOW TO RECOVER DISABLED GOOGLE ACCOUNT?
If Google has disabled account due to under age policy then follow this

Visit the official log-in page of Google and then tap on log In option.
Type your login credentials for the disabled account and then select on the Next.
Choose on Try to Restore tab.
User will be navigated to new page will open where you may ask to enter the required information and then go to the on-screen instructions to restore your Google account.
In case Google account is disabled due to policy violation then

Go to the official sign-in page of google and then sign in to your account using the login credentials.
Tap on Learn more.
Now select the ask us to restore your account section.
Now select any method to restore your disabled account and you can also type out a form where you will need to answer some security based questions asked by Google.
After that, hit on the Submit tab.
Follow these steps to get your account back and know how to recover disabled Google account still any problem then contact customer care for more details.