Contact not working since i hide .php extension

I hide .php extension and my contact form is not working anymore, can someone help? can i make a rule to show .php only on contact form page?

This is the code i use to hide .php

RewriteEngine On 
RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ https://www.pillopips.es/$1 [R,L]

RewriteEngine on
RewriteCond %{THE_REQUEST} /([^.]+)\.php [NC]
RewriteRule ^ /%1 [NC,L,R]
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^ %{REQUEST_URI}.php [NC,L]

contact form code:

<div class="contactform">
        
                  
                    <form action="envia.php" method="post" class="form-consulta"> 
                        <label>
                            <input type="text" name="nombre" placeholder="name" class="campo-form" required>
                        </label>
                        
                        <label>
                            <input type="email" name="email" placeholder="mail" class="campo-form" required>
                        </label>
                        
                        <label>
                            <textarea name="message" placeholder="message" class="campo-form"></textarea>
                        </label>

                        <input type="submit" value="Enviar" class="btn-form-enviar">
                    </form>

                </div>