The most common issue that causes this error code is when you have deployed your nodes on Digital Ocean incorrectly. In order to fix the error please follow steps below.
1-Destroy your node on Digital Ocean.
2-Wait 1/2 hour to log back into your Element Account. If you have forgotten your password, do a password reset.
*If it will not let you log in with the correct password, please open a tab incognito to open your Element Account.
3. Deploy your node on Digital Ocean using the instructions found on this page. Making sure to use the correct password for your Element account.