"We failed to sync your account. Please check your API keys and re-authenticate your account."
Re-authenticate Your Account: Click on the link provided in the error message to re-authenticate your exchange account. You will be asked to sign into a "third-party site" after clicking the re-authenticate link, which means log into the exchange you are trying to authenticate.
Check For Bugs: If re-authentication fails, search our public forum for any known issues with wallet or exchange syncing: How to Find and Monitor Bug Reports.
"An error has occurred, please try again."
Seek Support: This is a general error message. Contact Support or search our public forum for any ongoing issues with syncing for the specific exchange or wallet.
"This wallet has already been added to CoinTracker."
Remove Duplicate Entries: Delete the previously added exchange or wallet from your CoinTracker account to resolve this issue.