Why This Happens:
This happens when you attempt to submit a form page that has data missing or out of range. When you click the submit/update button, you will not be able to proceed until the highlighted error is corrected.
In a modern browser which support HTML5, such as Chrome or Firefox, the error will display itself by highlighting the form field in red.Examples:How To Fix:
After attempting to submit the page again, scroll to the top of the page and review any fields that are highlighted with an error message.
You should be able to submit the page after correcting the invalid fields.