Pressing submit shows that there are errors: How can they be corrected?

How can I know the errors found in my survey, to be corrected?

I have created a survey, in Preview, I found a message that mention errors in the second page in this survey, I do not know what are these errors to correct them

Hi,

These errors are actually messages used to alert people submitting your jotform that they have missed filling out few required fields which is why it is not letting them to post the jotform.

If you do not want to get that message, you can set the fields to be non-required.

Another - recommended way - to fix this if you have some required fields is to modify the text of the message when the jotform is to be submitted and you can do that by following the instructions found here http://www.jotform.com/help/61-How-to-Change-Translate-Form-Warnings

Do let us know if you have any further questions,

Best Regards,
Ben