When im logged in i get an error when trying to access the manage tab.

When im logged in im able to send a document out for signature but unable to access the manage page to monitor how its tracking. I keep getting the following error

We encountered an error while processing your request. We apologize for the inconvenience. Please reload the page and try again.

If you continue to encounter this error contact our customer support.

Error message: Unhandled Error: 170320205212593.app-a3

What does this mean and how can I get this fixed.

Thanks