Website down due to css change?

Question

WordPress

Wonders! They gave me a login / password from the wordpress admin panel, fix the style.
In editing the theme in the box with the text of the CSS file, I changed the first line. Now the site is completely down. Error 500.
What is it? Is that how it should be? Nothing is loaded at all - neither the admin panel nor the main one. Error 500 everywhere.
https://finline-komi.ru/ - well, it just worked!

Answer 1

It's so nice to get into the code of the engine without knowing the features of its work and without reading the documentation (especially about the technical information in the main css file), and after that scold the VP for being "so bad" :)

Answer 2

Was the file exactly CSS?
It's just that CSS files cannot bring down the server in theory, but custom styles can lie anywhere, including php files

Answer 3

What exactly did you change in the first line, the title of the topic?)

Answer 4

The most common cause of error 500 (Internal Server Error, internal server error) is the incorrect syntax of the .htaccess file or the presence of unsupported directives in it. Most often, it is enough to comment out the Options directive (to do this, put a hash mark at the beginning of the line - #), and the problem will disappear.
Error 500 can also be caused by mishandling CGI scripts:
CGI scripts must have UNIX (\n) line endings, not Windows (\r\n) line endings. To do this, they must be uploaded to the server via FTP in ASCII mode.
CGI scripts and folders in which they are located must be writable only by the owner, that is, they must have the rights 0755 (drwxr-xr-x).
As a result of the CGI script, incorrect HTTP response headers were generated. In this case, to solve the problem, it is useful to refer to the error_log (it can be found in the control panel in the "Hosting / Statistics / Log files / Errors" section).

Answer 5

Hello!
Not a good idea with disabling theme updates!
It's better to create a child theme that will override your edits and templates and won't be updated. And update the topic itself, as before.