Hello zeina ysf!

Thanks for the screenshot. I'm here to ensure that your accountant will be able to access your QuickBooks Online account.

This usually happens when there's an issue with the browser used. You'll want to use an incognito window and let the accountant log in from there. Incognito won't save your browsing history which can result in an error. 

These are some of the shortcut keys:

• Google Chrome: Ctrl + Shift + N
• Safari 11 or newer: ⌘ + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P 

Also, you'll want to clear the cache and make sure you're using a supported and up-to-date browser. This can fix any browser-related issues.

In addition, you can check this link: Add and manage users in QuickBooks Online. This will show you how to add, manage, or delete user profiles.

I'll still help you out if you have other concerns regarding your team users. If you have questions running reports or need to complete specific tasks in QuickBooks, let me know and I'll lend a hand.