Why my submissions data is gone?

We have collected near 450 submissions with no difficulties viewing the information. but suddently there was no data exept for ID, Submission date & IP! (total number of submissions are still the same but with no data) What on earth happened?? we are in urgent need of these data!

Please Help!

I checked your form and confirmed the issue. 

I'll investigate a little bit more and get back to you.

Thank you for your patience.

Please check your submissions page, all submissions should be there as expected, I just viewed them.

Let me know if you have further questions.

We're sorry for this inconvenience.

Thank you!