Form is hanging on submission

My form submission is not working and I have not changed anything. 

Hi,

Could you provide us more details of what you meant by your forms submission is not working?

I'm checking your form and it seems like they are still accessible. Are you referring to your submissions and you're unable to edit them?

We'll wait for your response.

When employees are hitting the submit button they are not getting a thank
you note and I am not getting the submission.
--------
Kevin Fenderson
Manager, Fleet Operations
Regional Offices
Kaiser Permanente
1950 Franklin St. 10th Floor
Oakland, CA 94612
510-987-3305 (office)
8-427-3305 (tie-line)
510-452-3339 (fax)
925-519-4137 (mobile phone)
http://kpnet.kp.org/fleetservices/
---------
kp.org/thrive
NOTICE TO RECIPIENT: If you are not the intended recipient of this
e-mail, you are prohibited from sharing, copying, or otherwise using or
disclosing its contents. If you have received this e-mail in error,
please notify the sender immediately by reply e-mail and permanently
delete this e-mail and any attachments without reading, forwarding or
saving them. Thank you.
...

I submitted the form again today and the data did come to me. After you
hit the "Submit" button it changes to "Please Wait" and never goes away or
goes to a thank you for the submission screen.
--------
Kevin Fenderson
Manager, Fleet Operations
Regional Offices
Kaiser Permanente
1950 Franklin St. 10th Floor
Oakland, CA 94612
510-987-3305 (office)
8-427-3305 (tie-line)
510-452-3339 (fax)
925-519-4137 (mobile phone)
http://kpnet.kp.org/fleetservices/
---------
kp.org/thrive
NOTICE TO RECIPIENT: If you are not the intended recipient of this
e-mail, you are prohibited from sharing, copying, or otherwise using or
disclosing its contents. If you have received this e-mail in error,
please notify the sender immediately by reply e-mail and permanently
delete this e-mail and any attachments without reading, forwarding or
saving them. Thank you.
...

I was able to submit the form without any issues.

If the issue is happening with embedded form, please provide us with a link to the web page in question.

Thank you.

The form is not embedded.  It has worked for several weeks with no problems and then all of a sudden we started having the submission problems.  Ben, I have no idea what you are talking about below:

"Also, the error that you have captured could be shown always when you go to the submit page directly - actually you should be shown the error page from our server, but IE can show his own error instead if it believes that the file holds no info and that their page would be better."

Thank you for your update. I have replied to the second thread:

http://www.jotform.com/answers/611219