Can't submit forms with attachments, upload error

Clients are reporting that they cannot submit forms that have attachments.  I went online to your site and it said for a small time that site was down for maintenance.  But clients and myself cannot submit without an error.

The issue was reported immediately and our developers were able to have it fixed right away. Please try again and let us know if you encounter any further issues.

We apologize for the inconvenience. Your feedback is most welcome.