Can't submit the DRIVE Grand Challenge for test result (showing 500 Internal Server Error)

Hello, I am trying to submit my test result on DRIVE Grand Challenge, but it always shows a 500 Internal Server Error. Does anyone know if they are accepting the submission? Why am I seeing this error? What can I do for the submission?

Thank you.

Dear TanzinaTani,

Likely something goes wrong when you are trying to upload your predictions. This can have a multitude of causes. We recommend trying a different network and/or a slightly different file.

Please let us know if you got it working!