Banks usually make transactions available in the last 30 - 90 days. After that they don't download.
There's a way to upload more than 90 days worth of bank transactions, andrew-kummer.
In addition to BRC's answer, you can manually upload bank transactions instead. If you can get a CSV, QFX, QBO, or OFX file from you bank, here's how to upload it:
Here's a great resource for your reference: How to upload more than 90 days of bank transactions.
If there's anything else that I can help you with, please don't hesitate to post them. Have a great day!