My quickbooks stopped importing bank account statements. No matter what I do it won't import. It stopped working since june 2018

Welcome to the Community, plsuniversal.

I'd be happy to lend a helping a hand with importing your bank statements.

As an initial troubleshooting step, let's perform a few manual updates to refresh the connection between your bank and QuickBooks Online.

Here's how:

1. On the left navigation menu, click Banking.
2. Go to Bank Feeds (depending on what you see).
3. Click on Update in the upper right. QuickBooks begins updating your account.

Also, disconnecting a bank account is also helpful if QuickBooks Online won't reconnect even after clicking Update several times. 

Here's how:

1. From the left menu, select Banking
2. Go to Banking, then select the Edit (pencil) icon on the account you want to change.
3. In the Account window, check the Disconnect this account on save box.
4. Select Save and Close.

You may find this article helpful: https://quickbooks.intuit.com/community/Banking-and-bank-feeds/How-to-add-and-connect-bank-and-credi....

I want to make sure you'll be able to connect your account, please let me know how it goes. Have a nice day!