ERRO90 Soultion please

Welcome to the Community, dipak-dubey-corp.

Let me guide you on how to sort it out for you.

Can you share more information on what are you trying to do in QuickBooks when you encounter this issue?

Normally, the application error-90 occurs when there's an issue updating Company Information such as switching your accounting method. Please make sure to log in as admin if you're trying to make some changes. If so, let's perform some troubleshooting steps to fix it.

Here's how:

1. Use the private incognito window:

Press keys: Command + Shift + N (Safari browser)

Press keys: Ctrl + Shift + N (Google Chrome browser)
Press keys: Ctrl + Shift + P (Mozilla Firefox & Microsoft Edge browser)
2. Use a different supported browser.

3. Clear cache and cookies.

Also, you can visit our Help page for reference. You'll see some of our helpful articles that will guide you in your future tasks.

Add a comment if you have further questions about managing your account. The Community and I will always here to help.