No one is able to submit forms, I took a look at it and I’m getting a POST 500 Internal Server Error.
POST http://carlsbad4rent.com/wp-json/contact-form-7/v1/contact-forms/321/feedback 500 (Internal Server Error)
Note: The same code is working well in localhost[wamp]
You need change in .htaccess file and in local setup folder name set as "wordpress" but in live site we have to change this name.
Before
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /agilitycards/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /agilitycards/index.php [L]
</IfModule>
# END WordPress
You need to replace with below code in .htaccess file.
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress