My site is: http://tpemusicotherapie.com
The site has been working perfectly for a few weeks, but yesterday after I tweaked a few things in the code (on several pages), I reloaded the site and found the HTTP Error 500 page, although the /wp-admin part of the site was working. I talked to my host's tech support, and they basically said there was a problem with the header file, and with the theme (Arkitect). However it was working well until I made those edits.
I tried the wordpress debug feature, but it couldn't read the template. Does anyone have any advice as to what I should do? I can post any code you would want, let me know.
Many thanks in advance :)