[solved] Froxlor web interface now giving 500 error. in General Discussion Posted December 15, 2015 · Report reply I reactivated mod_php and I started seeing the raw php code. Not sure why that is happening. I was able to tell froxlor to use fpm and things seem to be working now. So things are working now. Just not sure of the exact cause or why mod_php doesn't work now. Thanks for your help!