Please follow the below steps and reconnect your Quickbooks Online connector.
1. Login to DBSync using the link DBSync Login: https://app03.mydbsync.com/appcenter/login
2. Then Click on Development Studio(Button at the right side)
3. Click on Projects and click on “.” Project.
4. Click on to “Connectors” at the left side of the window and then click “ / QuickBooksOnline”
5. Then Click on “Would you like to reconnect?” then click on Connect to QuickBooks and login to your QBO enter the credential and sign in.
6. Then beside Quick Set Up click on “Advanced Properties” Click on Validate Connection then click on Save.
