500 (Internal Server Error)

What other plugins do you use on the site?

Pulgins list : Avada Builder, Avada Core, Contact Form 7, Disable & Remove Google Fonts, JWT Authentication for WP-API, Popup Builder, Termly | GDPR/CCPA Cookie Consent Banner, UpdraftPlus – Backup/Restore, WP Job Manager, WP Mail SMTP, Yoast Duplicate Post.
But as I informed previously, it’s not plugins issue. I have already checked by deactivating all the plugins and it didn’t work, When I switch theme Avada to default then form is working properly.

Try switching to the default theme and deactivating all plugins excluding Contact Form 7 and WP Mail SMTP.

Why you are advised to deactivate plugins and switch to the default theme.

Are you really getting what I’m telling you in my comments? Are you really reading what I mentioned? Or you are just copy pasting replies? I told you all the times I have already tried this to switching default theme and it’s working properly. Still you are telling me the same thing. I want solution from you that your plugin not working with Avada theme. If you are unable to fix it please let me know will try something else. I’m wasting my time that waiting for your solution.