Welcome to the Community, dietzenmdpa.
I'd be glad to lend a hand so you're able to record your bank transactions.
Any type of transaction can be entered manually in QuickBooks Online by clicking the New (+) button in the top left corner. From here, choose the desired transaction, enter all of the necessary info, then select Save and close when you're finished. I recommend checking out the following link that offers more details on recording transactions using New (+).
Additionally, banking error 108 typically means there's message that requires action from you on your bank's website. You can click this link for info on fixing banking error 108.
I'm only a comment or post away if you have any other questions. Take care!