Internal server error 500

[carlman]

Hello!
I have my Zen Cart store at http://www.carlmanevent.se/shop/index.php

I was editing some of the info pages this morning via the admin panel.
Then I manually made some changes in my swedish.php that is to be found in shop/includes/languages

After this, I now get an internal server error and I have no idea why...
I haven't made any strange changes and most changes I made via the admin panel and I can still connect to the admin panel, so there's nothing worng with the server in general. I have also tried to search the logs, but I can't see anything new there.
I already know that you can get these errors if editing a file and forgetting a "," sign somewhere, but I really haven't done that now...

I understand it's difficult for you to help me, but I don't know who to turn to...
I also tried to upload the original swedish.php in case something was wrong with my changes, but that didn't help either.

How can I found out why I get this message?
Is there any web site where you can enter an URL and get the result of which file that is causing this and on a certain row?
Probably not, but I'm hoping?

Thanks for all help and input...

Ewa.

[stevesh]

For one thing, you're missing one or more language files, as evidenced by the define names (HEADER_TITLE_CATALOG, for example) that are displayed rather than the define values. It may not be the cause of your problem, but it's a place to start.