I can't make wordpress to run local

Here is the problem. My WordPress site run correct local before christas but when I try now I get server error 500.
I know I haven’t touched the wp-config.php. I know this and I can also see that on the date modified which is ?den ?11 ?december ?2015, ??15:40:23.

I can see that wamp server is online so appache and php is correct.
I have also delete my database and created it and import my original database that I’m 100% is correct. It it the same database that I used to import before christmas.

I need some help to troubleshoot why I can’t make my wordpress site to run local.

//Tony