For some reason I am unable to access the Sales Order Module for a specific user in my accounts department. When logging in the page loads the users dashboard but there is a separate error screen that appears on the dash stating the following:

The page at https://crm.zoho.com says: Unable to process your request

When clearing the error and clicking on the sales order module I get another error page stating the following:

Sorry for the inconvenience caused. Please try after some time or repeat your issue in the feedback form given below. 

I have filled in the form and submitted it but to date I have received no feedback. Please assist as the user needs to complete billing.