500 Internal Server Error.
Need help for my website.
.htaccess ---------
[Sat May 09 01:35:16.765194 2015] [core:alert] [pid 671798] [client 203.82.197.51:50570] /home/username/public_html/.htaccess: Invalid command 'RewriteCond%{REQUEST_FILENAME}', perhaps misspelled or defined by a module not included in the server configuration
please help me