Crashed my website please help!

I was changing my .htacess file to change my sites timezone and uploaded my new .htacess and my site crashed with 500 server errors throughout the site. It’s not the code of the .htaccess file such as ANSI and Unicode it has always been ANSI. Please help!!! What do I do?Site is here

The site is up running now.

If the site crashes or returns 500 again, first thing to do is to view your log files.