"Contact Us" error

[mohsenkhosroanjam]

Description:
As a user, I can go to contact us to communicate with the owners.

Actual result:
When I submit the Contact Us form, the attachment error occurs.

Expected result:
When the user submits the contact us form, they should get a success message.

Steps to reproduce:
1- Go to https://www.esproc.com/contact-us/
2- Fill in the form
3- Click on "Submit" button

Screenshots:

[xjl002]

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