Hello marie7_14,
I understand how great Mint works if you can see your Bank connecting. I'm sorry if it caused you trouble. No worries, I'll definitely help you with that. ;)
I've just noticed that the error indicates either changes on your bank's website or your username and password for the account. Assuming that you can login directly into the Wells Fargo, I can suggest to resolve this issue is to refresh/update your credentials in your Mint account. But before anything else, please check your password format. If it's more than 14 characters, try to enter only the first 14 when logging-in your Wells Fargo Acct in Mint.
To do these, kindly delete first all the unsuccessfully added FI, then re-add it again then enter your login credentials (remember, first 14 characters only). If error still occurs, click the ""Fix It"" button, then ""Edit.""
If issue persist, we're just one click away! ;) You may contact us at Contact Mint and also include the link here in the community: (https://mint.lc.intuit.com/questions/1381173) so we can investigate further.
Thanks! ;)
All the best,
Mint Aga ;)