Hello there, @ThangTran.

I appreciate you for sharing the steps you performed to resolve the issue. Since it persists, I recommend contacting our Customer Care Team. This way, they'll be able to check further the main cause of the error "Cannot communicate with the company file ".

Here's how:

1. From the Help menu, select QuickBooks Desktop Help.
2. Click Contact Us.
3. Share a brief description of your concern in the dialogue box.
4. Click Search.
5. You can either select Get a Callback or Start a message.

Due to the ongoing pandemic, we have limited staff at the moment. This is the reason some of our support channels are only available during business hours. To ensure that you'll be assisted on time, please check out our support hours.

Also, you can always visit our Help articles page for reference. There, you can read some of the helpful articles that will guide you in your future tasks.

Please keep me posted on how it goes, ThangTran. Take care always.