My mobile quickbooks went blank and does not work meanwhile t works as it should and has all of my company's y info still present on my desktop computer. What happened?

Hi info-honeybeecar,

It's a pleasure to see you in Community.  Welcome!  It's important that you're able to complete your QuickBooks Online tasks from anywhere.  I'd be glad to assist!

In this situation, I suggest refreshing your app, or uninstalling and reinstalling it to see if you experience the same result.  I also recommend logging into your QuickBooks Online account from a web browser.

If the issue persists, please contact us.  It would be our pleasure to work with you in real time and ensure you're back to business as soon as possible!

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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If you have any other questions, feel free to reach back out.  We'd love to help!