Sending the form ends in a 404 error

The AJAX request of form results a:

Page Not Found
Reason: Request parameters could not be validated (&cHash empty)

Solution: Open the Installtool and disable pageNotFoundOnCHashError setting: [FE][pageNotFoundOnCHashError] = false

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TYPO3 Fluid-Form by coding.ms

Forms created and configured entirely with TypoScript. Ajax forms, flexible field sets, notes, captcha, MathGuard, and honeypot support a wide range of use cases. Finishers can send emails, write submitted data to a database, or generate PDFs. A backend module provides an overview of mails and requests, making form handling easier to maintain and manage.

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