EMERGENCY! Web-to-request form error

EMERGENCY! Web-to-request form error

Since 14th of october, when submitting a request through a web-to-request form, an error occurs. IE says page cannot be displayed (a zoho webpage), mozilla says nothing. The request doesn't arrive.

I experience this problem with multiple accounts from different organisations. Customers can only contact by webform so this problem is getting huge. Please contact me soon!