Why is many submissions missing in google sheet?

Submissions between Feb 23, 14:08 and Feb 24, 15:46  are missing from the google sheet, and thus created error in the sheet reader's side. 

How could this happen?  What would be solution?  Thanks

Apologies for the inconvenience.

Did you make any changes on the spreadsheet like deleting a submission or changing the column headers? That usually stops the integration to update. I went ahead and pushed the missing data on your spreadsheet, could you please check again? If that did not work or if the new submissions are not getting through, you might need to remove and re-integrate Google Spreadsheet to make sure that the integration is fresh and has a new token.