PrestaShop contact form not working, what should I do?

Question

Prestashop

Good afternoon, the standard feedback form does not work for me. When filling in all the fields and captchas, I click "Submit" and an error 500 appears.

In the admin panel, when I click on the tab: Configuration - Email, an error 500 also appears. The

logs gave the following picture:

Jun 23 12:44:34 vh286 apache_error[29516]: copy.uralmetiz72.ru [Tue Jun 23 12:44:34 2020] [error] [pid 59721] sapi_apache2.c(326): [client 5.16.115.106:59062] PHP Fatal error: require_once() [ function.require]: Failed opening required '/home/c/cj36568/copy_uralmetiz72/public_html/tools/swift/Swift/../Swift/Plugin/MailSend.php' (include_path='/home/c/cj36568/copy_uralmetiz72/public_html/tools /htmlpurifier/standalone:.:/opt/php53/share/pear') in /home/c/cj36568/copy_uralmetiz72/public_html/tools/swift/Swift/ClassLoader.php on line 35

Answer 1

Well, error 500 seems to be an overloaded server ...

Answer 2

PHP Fatal error: require_once() - if you translate this thing, you can see everything.
that the function of inserting a file into the code does not work.
Here you need to look in which file this function is called.
also look at the address of this file.
and the address of the callee.
please post this piece of code