Hey @animalrescue-wel,
I'd be glad to assist you with recording the transactions that weren't uploaded.
You always have the option to manually add transactions in QuickBooks Online. I'm including some articles that go over the process of entering checks and deposits:
Additionally, I recommend the following link, which is a hub of articles to assist with the reconciling, such as troubleshooting steps: Reconcile Hub.
That's it. I'm confident that this will help to get you on the right track.
Let me know if I can be of further help. Take care.