Dropbox Integration: Error message on PDF submission

Hello! I am having problems with dropbox import. I have tried resetting the integration and configuring the form and so on and so forth a lot of times already. It was working all fine before but today and now on the form the comes to dropbox is blank with an error. How can this be solved?

Thank you in advance.

I have attached the image.

I also tried drive and with google drive it all works fine.

I presume that is the PDF submission uploaded in the Dropbox folder? Apologies for the inconvenience. This problem was caused due to a delay or lag in our replication process in our servers. But this is now fixed. Please do check again. If you are still having problems, please try re-integrating Dropbox.