All my contacts have gone from my quickbooks?

Hello there, @sis-fitters-gmai. 

Thanks for posting in the Community today. I'm here to help you recover your contacts in QuickBooks. 

It could be that you've logged in to an incorrect account. Hence, all your contacts can't be found. I'd recommend logging out and logging back in using the correct credentials. 

If it's still an issue, I'd suggest you login using a private or incognito window. You can use the keyboard shortcut keys below: 

• Ctrl + Shift + N for Google Chrome
• Ctrl + Shift + P for Firefox & Microsoft Edge
• Command + Shift + N for Safari

Check your contacts again. If it's there, go back to your regular browser and start clearing its cache to improve your experience with QuickBooks. 

You may also switch to other supported browsers to further isolate the issue.

Get back to his post if you have more concerns. I'm always around to guide you.