"Still refreshing" after 1 year

Please give me a way the Discover card account transactions can be imported. It shows last import 1 year ago though I’ve tried manually refreshing.
Also, numerous periods are missing from other accounts, such as Jan-Feb, March-April, or Oct-Dec 2024. I’ve refreshed hoping these will reappear, and I’ve downloaded transactions from a bank account and uploaded the transactions from that, but either way there still appear to be holes. Can you help with either of these issues please?