Internal Server Error - Drobo Access app

Hi all,
Setting up the DroboAccess App and the myDrobo by the book however, the link is not accessible, error message as per below:
Internal Server Error
“The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log.”
It also tried to use a certificate, not expired though and still not connecting. I deleted that cert just in case and there is no message to create a new one.
The server logs are not showing much but they confirm DroboAccess is running.

Any advice from the pros?