Thanks for getting involved with this thread, FrustratedUser1001.

Since you've been signing in to your Intuit account successfully within the past 88 days, but are encountering a message advising that you haven't logged in for 88 days, I'd recommend troubleshooting with some of your available tools.

Initially, you can use the Verify Data utility. This identifies known issues within company files and informs users if their Rebuild Data option needs to be utilized afterwards.

Here's how it's used:
 

1. Click Window, then Close All.
2. In your top menu bar, go to File.
3. Choose Utilities.
4. Select Verify Data.

If its results show a "Your data has lost integrity," message, this indicates there's damage in your file. You can use the Rebuild Data tool to fix it. For specific errors, there may already be a resource for them on our support site.

In the event it displays a "QuickBooks detected no problems with your data," notification, or you've searched our help articles and didn't find any existing resources about the specific error it displayed, you can move on to troubleshooting with our QuickBooks Tool Hub.

Here's how:
 

1. Close QuickBooks and download a copy of the utility's most recent version, then run it.
2. Follow along with your on-screen steps to complete installation and agree with our terms and conditions.
3. Once it's installed, double-click its icon to open the tool hub. If you can't find your app, perform a search in Windows for "QuickBooks Tool Hub" and select the program.
4. Access your Company File Issues tab and use the Quick Fix my file and QuickBooks File Doctor tools to troubleshoot your company file. In the event you need additional assistance, choose File Dr Help.

If you continue encountering this message after performing the recommended troubleshooting steps, you'll want to get in touch with our Customer Care team. They'll be able to pull up your account in a secure environment, conduct further research with you, and create an investigation ticket if necessary.
 

I've also included a detailed resource about working with Intuit accounts which may come in handy moving forward: How to access QuickBooks files with One Intuit Account
 

I'll be here to help if there's any questions. Have a wonderful Monday!