Hi, @ruthlkmiller. Welcome to the Community.
Could you please share the exact error message you've encountered when trying to connect your Global Federal Credit Union account ? Any additional details would be greatly appreciated, as they will help us provide more targeted solutions.
I also highly suggest visiting your bank's website to check for any ongoing maintenance or updates that might be interfering with the connection.
In the meantime, you can manually upload your transactions into QuickBooks Online Solopreneur: Manually upload transactions into QuickBooks Online.
Once you successfully upload your transactions, you can visit this article to learn how to reconcile your account: Reconcile an account in QuickBooks Online.
Please feel free to return to this thread if you have any further concerns.
