Getting an error "Looks like you've already connected to your accounts for another line of work. You’ll have to manually enter your expenses for this one"? how to resolve

If you deleted your Business (and Schedule C for that business), the accounts that were connected should disconnect.

If you're using TurboTax Online, close TurboTax, clear your Cache and Cookies and return to the program to add your new business and connect your accounts.

Here's more info on Adding Expenses from Bank Accounts.