I have many forms which I have integrated with google spreadsheet but still the integration is not working

is there any way to refresh the integration without creating new?

Hello,

If you have made changes on the form after setting your form's integration with Google Spreadsheet, there is a high chance that the integration will fail. So I suggest on such cases that you re-integrate your form with Google Spreadsheet to start fresh. 

There is no option to refresh an integration, but we can try pushing data to the integration, which I just did. Please check your form's submissions if all are synced properly and observe if the submissions fail to sync the next time you receive a new submission. If it fails again, I recommend to reintegrate your form with Google Spreadsheet.

Thanks.