Quick books not working

Welcome to the Community, sudhir gumte.

The kind of QuickBooks behavior where QuickBooks Online (QBO) is not working can be fixed by some basic troubleshooting steps. 

Let's try using a private browser or incognito window as an initial step to fixing this issue. This will eliminate any browser history that may cause a glitch inside QuickBooks. You can refer to the following keyboard shortcuts below:
 

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

If it works, close out the private window and clear the cache on the regular browser. This will remove previously-stored browsing data that might have caused the issue. Otherwise, you can try other supported browsers to help narrow down the cause of this behavior.

Also, feel free to visit this link where you can gain more tips and articles for future use: Welcome India customers to Global Community.

The Community is always open if you have other questions. I'll be around to help. Wishing you a great day ahead.