Post form not working on wordpress theme. 405 error?

Question

PHP

Created a message form in www.webformgenerator.eu . Put it on the main page. Error 405 Not Allowed when submitting. If you do not use the wordpress engine then everything works fine. Is it really impossible to use custom forms on this engine? Please tell me what can be done. I don't want to download these plugins. I already have all the pages ready and it will take a lot of time to redo the layout.

Answer 1

With the help of www.webformgenerator.eu you create just an html form frame. On the site you need to write a script handler.
AT

<form action="process_form.php" class="TTWForm" method="post" novalidate=""
     enctype="multipart/form-data">

costs action=process_form.php. process_form.php - this should be the form processing script. Since you do not have it, then a 404 error is issued.
I suggest you use the plugin https://ru.wordpress.org/plugins/contact-form-7/
With it, you can create various forms, customize emails, etc. The most important thing is done with just a mouse. And in the right place, just insert the shortcode.
On this site, for example, Seolead forms are implemented using this plugin.