When linking a bank account for use with Stronghold this error will occur if the bank you linked does not have a valid personal checking account or a checking account was not selected in the open banking screen when linking your account.
To resolve this issue be sure to connect a bank account that has a personal checking account connected, and be sure to select the checking account if prompted to do so during the connection process.
If you linked a bank with a personal checking account and selected the checking account, if you were prompted to do so during the connection process, and you are still experienced this error please contact us.