My quickbooks all of a sudden will not take any payments. It was using Paypal and is connected but customers can't pay!

Thanks for reaching out the Community, contact28.

I want to make sure that you're able to accept PayPal payments in QuickBooks Online (QBO).

In this case, let's disconnect and reconnect the PayPal app. This will help the connection to sync up again.

Here are the steps:

1. Sign in to your QBO account.
2. From the left menu, select Apps.
3. Choose the My Apps tab, then click on the Action drop down and select Settings.
4. From there, click on Disconnect and complete the short questionnaire.
5. Then, select Disconnect to remove the app from your company file.

To reconnect the app:

1. Go to the Apps menu and enter PayPal in the Search for an app field.
2. Click on PayPal and choose Connect.
3. Follow the onscreen instructions.

Once connected, resend the invoice to your customer.

For reference, you can also check out this article: Steps to get paid using PayPal and QuickBooks.

Please let me know how it goes. I'm here to help. Take care and have a great day.