The 2.SESSION.6 error is a known bug that we're working on fixing. In the meantime, this should help you get past it:

1) Close Skullgirls Mobile.

2) Remove your Google Account from your device.
This is a little different on every device, but here's some steps that may work for you:
  1. Open your phone's Settings app.
  2. Tap Accounts. If you don't see "Accounts," tap Users & accounts.
  3. Tap the account you want to remove > Remove account.
  4. If this is the only Google Account on the phone, you'll need to enter your phone's pattern, PIN, or password for security.

If these steps don't work for you, you may need to search the internet for how to remove your Google account on your device.

3) Reinstall Skullgirls Mobile.

4) Log in using your Google Account.

This should get you back into your account again! If you're still having issues logging in, send us and email and we'll be happy to help.