Hi @jkamau822,
We have tested the inquiry form and it working fine on our side.
Could you please confirm you are using the latest version of WP Travel Engine plugin?
Please also check whether or not your hosting meets the requirement recommended by WordPress here.
The issue with the email sometimes can be due to hosting. Please check and let us know.
If the above requirements are met and you are still facing the issue, please get in touch with our support team here. They will look into the cause of the issue and get back to you with solutions.
Thank you.
Best regards,
Rara Theme Support Team